/*************************************************************************** * Copyright (C) 2005 to 2007 by Jonathan Duddington * * email: jonsd@users.sourceforge.net * * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * * the Free Software Foundation; either version 3 of the License, or * * (at your option) any later version. * * * * This program is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * * GNU General Public License for more details. * * * * You should have received a copy of the GNU General Public License * * along with this program; if not, write see: * * . * ***************************************************************************/ #include "StdAfx.h" #define LOG_TRANSLATE #include #include #include #include #include #include #include "speak_lib.h" #include "speech.h" #include "phoneme.h" #include "synthesize.h" #include "translate.h" int dictionary_skipwords; char dictionary_name[40]; extern MNEM_TAB mnem_flags[]; // accented characters which indicate (in some languages) the start of a separate syllable //static const unsigned short diereses_list[7] = {L'ä',L'ë',L'ï',L'ö',L'ü',L'ÿ',0}; static const unsigned short diereses_list[7] = {0xe4,0xeb,0xef,0xf6,0xfc,0xff,0}; // convert characters to an approximate 7 bit ascii equivalent // used for checking for vowels static unsigned char remove_accent[] = { 'a','a','a','a','a','a','a','c','e','e','e','e','i','i','i','i', // 0c0 'd','n','o','o','o','o','o', 0, 'o','u','u','u','u','y','t','s', // 0d0 'a','a','a','a','a','a','a','c','e','e','e','e','i','i','i','i', // 0e0 'd','n','o','o','o','o','o', 0 ,'o','u','u','u','u','y','t','y', // 0f0 'a','a','a','a','a','a','c','c','c','c','c','c','c','c','d','d', // 100 'd','d','e','e','e','e','e','e','e','e','e','e','g','g','g','g', // 110 'g','g','g','g','h','h','h','h','i','i','i','i','i','i','i','i', // 120 'i','i','i','i','j','j','k','k','k','l','l','l','l','l','l','l', // 130 'l','l','l','n','n','n','n','n','n','n','n','n','o','o','o','o', // 140 'o','o','o','o','r','r','r','r','r','r','s','s','s','s','s','s', // 150 's','s','t','t','t','t','t','t','u','u','u','u','u','u','u','u', // 160 'u','u','u','u','w','w','y','y','y','z','z','z','z','z','z','s', // 170 'b','b','b','b', 0, 0, 'o','c','c','d','d','d','d','d','e','e', // 180 'e','f','f','g','g','h','i','i','k','k','l','l','m','n','n','o', // 190 'o','o','o','o','p','p','y', 0, 0, 's','s','t','t','t','t','u', // 1a0 'u','u','v','y','y','z','z','z','z','z','z','z', 0, 0, 0, 'w', // 1b0 't','t','t','k','d','d','d','l','l','l','n','n','n','a','a','i', // 1c0 'i','o','o','u','u','u','u','u','u','u','u','u','u','e','a','a', // 1d0 'a','a','a','a','g','g','g','g','k','k','o','o','o','o','z','z', // 1e0 'j','d','d','d','g','g','w','w','n','n','a','a','a','a','o','o', // 1f0 'a','a','a','a','e','e','e','e','i','i','i','i','o','o','o','o', // 200 'r','r','r','r','u','u','u','u','s','s','t','t','y','y','h','h', // 210 'n','d','o','o','z','z','a','a','e','e','o','o','o','o','o','o', // 220 'o','o','y','y','l','n','t','j','d','q','a','c','c','l','t','s', // 230 'z', 0 }; void strncpy0(char *to,const char *from, int size) {//=============================================== // strcpy with limit, ensures a zero terminator strncpy(to,from,size); to[size-1] = 0; } #ifdef ARCH_BIG int reverse_word_bytes(int word) {//============================= // reverse the order of bytes from little-endian to big-endian int ix; int word2 = 0; for(ix=24; ix>=0; ix -= 8) { word2 |= (word >> ix) & 0xff; word2 = word2 << 8; } return(word2); } #endif int LookupMnem(MNEM_TAB *table, char *string) {//========================================== while(table->mnem != NULL) { if(strcmp(string,table->mnem)==0) return(table->value); table++; } return(table->value); } const char *LookupMnem(MNEM_TAB *table, int value) {//=============================================== while(table->mnem != NULL) { if(table->value == value) return(table->mnem); table++; } return(""); } //============================================================================================= // Read pronunciation rules and pronunciation lookup dictionary // //============================================================================================= int Translator::LoadDictionary(const char *name, int no_error) {//=========================================================== int hash; char *p; int *pw; int length; FILE *f; unsigned int size; char fname[sizeof(path_home)+20]; strcpy(dictionary_name,name); // currently loaded dictionary name if(no_error) // don't load dictionary, just set the dictionary_name return(1); // Load a pronunciation data file into memory // bytes 0-3: offset to rules data // bytes 4-7: number of hash table entries sprintf(fname,"%s%c%s_dict",path_home,PATHSEP,name); size = GetFileLength(fname); f = fopen(fname,"rb"); if((f == NULL) || (size == 0)) { if(no_error == 0) { fprintf(stderr,"Can't read dictionary file: '%s'\n",fname); } return(1); } if(data_dictlist != NULL) Free(data_dictlist); data_dictlist = Alloc(size); fread(data_dictlist,size,1,f); fclose(f); pw = (int *)data_dictlist; length = pw[1]; if(size <= (N_HASH_DICT + sizeof(int)*2)) { fprintf(stderr,"Empty _dict file: '%s\n",fname); return(2); } if((pw[0] != N_HASH_DICT) || (length <= 0) || (length > 0x8000000)) { fprintf(stderr,"Bad data: '%s'\n",fname); return(2); } data_dictrules = &data_dictlist[length]; // set up indices into data_dictrules InitGroups(); if(groups1[0] == NULL) { fprintf(stderr,"Error in %s_rules, no default rule group\n",name); } // set up hash table for data_dictlist p = &data_dictlist[8]; for(hash=0; hash= 0) && (ix < N_LETTER_GROUPS)) { letterGroups[ix] = p; } } else { len = strlen(p); p_name = p; c = p_name[0]; p += (len+1); if(len == 1) { groups1[c] = p; } else if(len == 0) { groups1[0] = p; } else { if(groups2_start[c] == 255) groups2_start[c] = n_groups2; groups2_count[c]++; groups2[n_groups2] = p; c2 = p_name[1]; groups2_name[n_groups2++] = (c + (c2 << 8)); } } // skip over all the rules in this group while(*p != RULE_GROUP_END) { p += (strlen(p) + 1); } p++; } } // end of InitGroups int HashDictionary(const char *string) //==================================== /* Generate a hash code from the specified string This is used to access the dictionary_2 word-lookup dictionary */ { int c; int chars=0; int hash=0; while((c = (*string++ & 0xff)) != 0) { hash = hash * 8 + c; hash = (hash & 0x3ff) ^ (hash >> 8); /* exclusive or */ chars++; } return((hash+chars) & 0x3ff); // a 10 bit hash code } // end of HashDictionary //============================================================================================= // Translate between internal representation of phonemes and a mnemonic form for display // //============================================================================================= char *EncodePhonemes(char *p, char *outptr, unsigned char *bad_phoneme) /*********************************************************************/ /* Translate a phoneme string from ascii mnemonics to internal phoneme numbers, from 'p' up to next blank . Returns advanced 'p' outptr contains encoded phonemes, unrecognised phonemes are encoded as 255 bad_phoneme must point to char array of length 2 of more */ { int ix; unsigned char c; int count; /* num. of matching characters */ int max; /* highest num. of matching found so far */ int max_ph; /* corresponding phoneme with highest matching */ int consumed; unsigned int mnemonic_word; bad_phoneme[0] = 0; // skip initial blanks while(isspace(*p)) { p++; } while(((c = *p) != 0) && !isspace(c)) { consumed = 0; switch(c) { case '|': // used to separate phoneme mnemonics if needed, to prevent characters being treated // as a multi-letter mnemonic if((c = p[1]) == '|') { // treat double || as a word-break symbol, drop through // to the default case with c = '|' } else { p++; break; } default: // lookup the phoneme mnemonic, find the phoneme with the highest number of // matching characters max= -1; max_ph= 0; for(ix=1; ixtype == phINVALID) continue; // this phoneme is not defined for this language count = 0; mnemonic_word = phoneme_tab[ix]->mnemonic; while(((c = p[count]) > ' ') && (count < 4) && (c == ((mnemonic_word >> (count*8)) & 0xff))) count++; if((count > max) && ((count == 4) || (((mnemonic_word >> (count*8)) & 0xff)==0))) { max = count; max_ph = phoneme_tab[ix]->code; } } if(max_ph == 0) { max_ph = 255; /* not recognised */ bad_phoneme[0] = *p; bad_phoneme[1] = 0; } if(max <= 0) max = 1; p += (consumed + max); *outptr++ = (char)(max_ph); if(max_ph == phonSWITCH) { // Switch Language: this phoneme is followed by a text string char *p_lang = outptr; while(!isspace(c = *p++) && (c != 0)) *outptr++ = tolower(c); *outptr = 0; if(strcmp(p_lang,"en")==0) { *p_lang = 0; // don't need "en", it's assumed by default } return(p); } break; } } /* terminate the encoded string */ *outptr = 0; return(p); } // end of EncodePhonemes void DecodePhonemes(const char *inptr, char *outptr) //================================================== // Translate from internal phoneme codes into phoneme mnemonics { unsigned char phcode; unsigned char c; unsigned int mnem; PHONEME_TAB *ph; static const char *stress_chars = "==,,'* "; while((phcode = *inptr++) > 0) { if(phcode == 255) continue; /* indicates unrecognised phoneme */ if((ph = phoneme_tab[phcode]) == NULL) continue; if((ph->type == phSTRESS) && (ph->std_length <= 4) && (ph->spect == 0)) { if(ph->std_length > 1) *outptr++ = stress_chars[ph->std_length]; } else { mnem = ph->mnemonic; while((c = (mnem & 0xff)) != 0) { *outptr++ = c; mnem = mnem >> 8; } } } *outptr = 0; /* string terminator */ } // end of DecodePhonemes void Translator::WriteMnemonic(int *ix, int mnem) {//============================================== unsigned char c; while((c = mnem & 0xff) != 0) { if((c == '/') && (option_phoneme_variants==0)) break; // discard phoneme variant indicator phon_out[(*ix)++]= c; // phon_out[phon_out_ix++]= ipa1[c]; mnem = mnem >> 8; } } void Translator::GetTranslatedPhonemeString(char *phon_out, int n_phon_out) {//======================================================================== /* Can be called after a clause has been translated into phonemes, in order to display the clause in phoneme mnemonic form. */ int ix; int phon_out_ix=0; int stress; PHONEME_LIST *plist; static const char *stress_chars = "==,,''"; if(phon_out != NULL) { for(ix=1; ix<(n_phoneme_list-2) && (phon_out_ix < (n_phon_out - 6)); ix++) { plist = &phoneme_list[ix]; if(plist->newword) phon_out[phon_out_ix++] = ' '; if(plist->synthflags & SFLAG_SYLLABLE) { if((stress = plist->tone) > 1) { if(stress > 5) stress = 5; phon_out[phon_out_ix++] = stress_chars[stress]; } } WriteMnemonic(&phon_out_ix,plist->ph->mnemonic); if(plist->synthflags & SFLAG_LENGTHEN) { WriteMnemonic(&phon_out_ix,phoneme_tab[phonLENGTHEN]->mnemonic); } if((plist->synthflags & SFLAG_SYLLABLE) && (plist->type != phVOWEL)) { // syllablic consonant WriteMnemonic(&phon_out_ix,phoneme_tab[phonSYLLABIC]->mnemonic); } if(plist->tone_ph > 0) { WriteMnemonic(&phon_out_ix,phoneme_tab[plist->tone_ph]->mnemonic); } } if(phon_out_ix >= n_phon_out) phon_out_ix = n_phon_out - 1; phon_out[phon_out_ix] = 0; } } // end of Translator::GetTranslatedPhonemeString //============================================================================================= // Is a word Unpronouncable - and so should be spoken as individual letters // //============================================================================================= #ifdef deleted // this is the initials_bitmap for english static unsigned char initials_bitmap[86] = { 0x00, 0x00, 0x00, 0x00, 0x22, 0x08, 0x00, 0x88, // 0 0x20, 0x24, 0x20, 0x80, 0x10, 0x00, 0x00, 0x00, 0x00, 0x28, 0x08, 0x00, 0x88, 0x22, 0x04, 0x00, // 16 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x22, 0x04, 0x00, 0x02, 0x00, 0x00, // 32 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x28, 0x8a, 0x03, 0x00, 0x00, 0x40, 0x00, // 48 0x02, 0x00, 0x41, 0xca, 0x9b, 0x06, 0x20, 0x80, 0x91, 0x00, 0x00, 0x00, 0x00, 0x20, 0x08, 0x00, // 64 0x08, 0x20, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x22, 0x00, 0x01, 0x00, }; #endif int Translator::Unpronouncable(char *word) {//======================================= /* Determines whether a word in 'unpronouncable', i.e. whether it should be spoken as individual letters. This function may be language specific. This is a generic version. */ int c; int c1=0; int vowel_posn=9; int index; int count; int apostrophe=0; if(langopts.param[LOPT_UNPRONOUNCABLE] == 1) return(0); if((*word == ' ') || (*word == 0)) return(0); index = 0; count = 0; for(;;) { index += utf8_in(&c,&word[index],0); if((c==0) || (c==' ')) break; if(count==0) c1 = c; count++; if(IsVowel(c)) { vowel_posn = count; // position of the first vowel break; } if(c == '\'') apostrophe = 1; else if(!iswalpha(c)) return(0); // letter (not vowel) outside a-z range or apostrophe, abort test } if((vowel_posn < 9) && (langopts.param[LOPT_UNPRONOUNCABLE] == 2)) return(0); // option means allow any word with a vowel if(c1 == langopts.param[LOPT_UNPRONOUNCABLE]) vowel_posn--; // disregard this as the initial letter when counting if(vowel_posn > (langopts.max_initial_consonants+1)) return(1); // no vowel, or no vowel in first four letters return(0); } /* end of Unpronounceable */ int Translator::IsLetterGroup(char *word, int group, int pre) {//========================================================== // match the word against a list of utf-8 strings char *p; char *w; p = letterGroups[group]; while(*p != 0) { w = word; while(*p == *w) { w++; p++; } if(*p == 0) return(w-word); // matched a complete string while(*p++ != 0); // skip to end of string } return(0); } int Translator::IsLetter(int letter, int group) {//============================================ if(letter_groups[group] != NULL) { if(wcschr(letter_groups[group],letter)) return(1); return(0); } if(group > 7) return(0); if(letter_bits_offset > 0) { letter -= letter_bits_offset; } else { if((letter >= 0xc0) && (letter <= 0x241)) return(letter_bits[remove_accent[letter-0xc0]] & (1L << group)); } if((letter >= 0) && (letter < 0x80)) return(letter_bits[letter] & (1L << group)); return(0); } int Translator::IsVowel(int letter) {//================================ return(IsLetter(letter,0)); } void SetLetterVowel(Translator *tr, int c) {//======================================= tr->letter_bits[c] = (tr->letter_bits[c] & 0x40) | 0x81; // keep value for group 6 (front vowels e,i,y) } void ResetLetterBits(Translator *tr, int groups) {//============================================= // Clear all the specified groups unsigned int ix; unsigned int mask; mask = ~groups; for(ix=0; ixletter_bits); ix++) { tr->letter_bits[ix] &= mask; } } void SetLetterBits(Translator *tr, int group, const char *string) {//============================================================== int bits; unsigned char c; bits = (1L << group); while((c = *string++) != 0) tr->letter_bits[c] |= bits; } void SetLetterBitsRange(Translator *tr, int group, int first, int last) {//==================================================================== int bits; int ix; bits = (1L << group); for(ix=first; ix<=last; ix++) { tr->letter_bits[ix] |= bits; } } //============================================================================================= // Determine the stress pattern of a word // //============================================================================================= static int GetVowelStress(Translator *tr, unsigned char *phonemes, unsigned char *vowel_stress, int &vowel_count, int &stressed_syllable, int control) {//==================================================================================================================================================== // control = 1, set stress to 1 for forced unstressed vowels unsigned char phcode; PHONEME_TAB *ph; unsigned char *ph_out = phonemes; int count = 1; int max_stress = 0; int ix; int j; int stress = 0; int primary_posn = 0; vowel_stress[0] = 0; while((phcode = *phonemes++) != 0) { if((ph = phoneme_tab[phcode]) == NULL) continue; if((ph->type == phSTRESS) && (ph->spect == 0)) { /* stress marker, use this for the following vowel */ if(phcode == phonSTRESS_PREV) { /* primary stress on preceeding vowel */ j = count - 1; while((j > 0) && (stressed_syllable == 0) && (vowel_stress[j] < 4)) { if(vowel_stress[j] != 1) { // don't promote a phoneme which must be unstressed vowel_stress[j] = 4; if(max_stress < 4) { max_stress = 4; primary_posn = j; } /* reduce any preceding primary stress markers */ for(ix=1; ixstd_length < 4) || (stressed_syllable == 0)) { stress = ph->std_length; if(stress > max_stress) max_stress = stress; } } continue; } if((ph->type == phVOWEL) && !(ph->phflags & phNONSYLLABIC)) { vowel_stress[count] = (char)stress; if((stress >= 4) && (stress >= max_stress)) { primary_posn = count; max_stress = stress; } if((stress == 0) && (control & 1) && (ph->phflags & phUNSTRESSED)) vowel_stress[count] = 1; /* weak vowel, must be unstressed */ count++; stress = 0; } else if(phcode == phonSYLLABIC) { // previous consonant phoneme is syllablic vowel_stress[count] = (char)stress; if((stress == 0) && (control & 1)) vowel_stress[count++] = 1; // syllabic consonant, usually unstressed } *ph_out++ = phcode; } vowel_stress[count] = 0; *ph_out = 0; /* has the position of the primary stress been specified by $1, $2, etc? */ if(stressed_syllable > 0) { if(stressed_syllable >= count) stressed_syllable = count-1; // the final syllable vowel_stress[stressed_syllable] = 4; max_stress = 4; primary_posn = stressed_syllable; } if(max_stress == 5) { // priority stress, replaces any other primary stress marker for(ix=1; ixlangopts.stress_flags & 0x20000) vowel_stress[ix] = 0; else vowel_stress[ix] = 3; } if(vowel_stress[ix] == 5) { vowel_stress[ix] = 4; primary_posn = ix; } } max_stress = 4; } stressed_syllable = primary_posn; vowel_count = count; return(max_stress); } // end of GetVowelStress static char stress_phonemes[] = {phonSTRESS_U, phonSTRESS_D, phonSTRESS_2, phonSTRESS_3, phonSTRESS_P, phonSTRESS_P2, phonSTRESS_TONIC}; void ChangeWordStress(Translator *tr, char *word, int new_stress) {//============================================================== int ix; unsigned char *p; int max_stress; int vowel_count; // num of vowels + 1 int stressed_syllable=0; // position of stressed syllable unsigned char phonetic[N_WORD_PHONEMES]; unsigned char vowel_stress[N_WORD_PHONEMES/2]; strcpy((char *)phonetic,word); max_stress = GetVowelStress(tr, phonetic, vowel_stress, vowel_count, stressed_syllable, 0); if(new_stress >= 4) { // promote to primary stress for(ix=1; ix= max_stress) { vowel_stress[ix] = new_stress; break; } } } else { // remove primary stress for(ix=1; ix new_stress) // >= allows for diminished stress (=1) vowel_stress[ix] = new_stress; } } // write out phonemes ix = 1; p = phonetic; while(*p != 0) { if((phoneme_tab[*p]->type == phVOWEL) && !(phoneme_tab[*p]->phflags & phNONSYLLABIC)) { if(vowel_stress[ix] != 0) *word++ = stress_phonemes[vowel_stress[ix]]; ix++; } *word++ = *p++; } *word = 0; } // end of ChangeWordStress void Translator::SetWordStress(char *output, unsigned int dictionary_flags, int tonic, int prev_stress) {//=================================================================================================== /* Guess stress pattern of word. This is language specific 'dictionary_flags' has bits 0-3 position of stressed vowel (if > 0) or unstressed (if == 7) or syllables 1 and 2 (if == 6) bits 8... dictionary flags If 'tonic' is set (>= 0), replace highest stress by this value. Parameter used for input and output */ unsigned char phcode; unsigned char *p; PHONEME_TAB *ph; int stress; int max_stress; int vowel_count; // num of vowels + 1 int ix; int v; int v_stress; int stressed_syllable; // position of stressed syllable int max_stress_posn; int unstressed_word = 0; char *max_output; int final_ph; int mnem; int post_tonic; int opt_length; int done; unsigned char vowel_stress[N_WORD_PHONEMES/2]; char syllable_weight[N_WORD_PHONEMES/2]; unsigned char phonetic[N_WORD_PHONEMES]; static char consonant_types[16] = {0,0,0,1,1,1,1,1,1,1,0,0,0,0,0,0}; /* stress numbers STRESS_BASE + 0 diminished, unstressed within a word 1 unstressed, weak 2 3 secondary stress 4 main stress */ /* copy input string into internal buffer */ for(ix=0; ix= n_phoneme_tab) phonetic[ix] = phonSCHWA; if(phonetic[ix] == 0) break; } if(ix == 0) return; final_ph = phonetic[ix-1]; max_output = output + (N_WORD_PHONEMES-3); /* check for overrun */ // any stress position marked in the xx_list dictionary ? stressed_syllable = dictionary_flags & 0x7; if(dictionary_flags & 0x8) { // this indicates a word without a primary stress stressed_syllable = dictionary_flags & 0x3; unstressed_word = 1; } max_stress = GetVowelStress(this, phonetic, vowel_stress, vowel_count, stressed_syllable, 1); // heavy or light syllables ix = 1; for(p = phonetic; *p != 0; p++) { if((phoneme_tab[p[0]]->type == phVOWEL) && !(phoneme_tab[p[0]]->phflags & phNONSYLLABIC)) { int weight = 0; int lengthened = 0; if(phoneme_tab[p[1]]->code == phonLENGTHEN) lengthened = 1; if(lengthened || (phoneme_tab[p[0]]->phflags & phLONG)) { // long vowel, increase syllable weight weight++; } if(lengthened) p++; // advance over phonLENGTHEN if(consonant_types[phoneme_tab[p[1]]->type] && ((phoneme_tab[p[2]]->type != phVOWEL) || (phoneme_tab[p[1]]->phflags & phLONG))) { // followed by two consonants, a long consonant, or consonant and end-of-word weight++; } syllable_weight[ix] = weight; ix++; } } switch(langopts.stress_rule) { case 2: // a language with stress on penultimate vowel if(stressed_syllable == 0) { /* no explicit stress - stress the penultimate vowel */ max_stress = 4; if(vowel_count > 2) { stressed_syllable = vowel_count - 2; if(langopts.stress_flags & 0x300) { // LANG=Spanish, stress on last vowel if the word ends in a consonant other than 'n' or 's' if(phoneme_tab[final_ph]->type != phVOWEL) { if(langopts.stress_flags & 0x100) { stressed_syllable = vowel_count - 1; } else { mnem = phoneme_tab[final_ph]->mnemonic; if((mnem != 'n') && (mnem != 's')) { stressed_syllable = vowel_count - 1; } } } } if(vowel_stress[stressed_syllable] == 1) { // but this vowel is explicitly marked as unstressed if(stressed_syllable > 1) stressed_syllable--; else stressed_syllable++; } } else { stressed_syllable = 1; if(langopts.stress_flags & 0x1) max_stress = 3; // don't give full stress to monosyllables } // only set the stress if it's not already marked explicitly if(vowel_stress[stressed_syllable] == 0) { // don't stress if next and prev syllables are stressed if((vowel_stress[stressed_syllable-1] < 4) || (vowel_stress[stressed_syllable+1] < 4)) vowel_stress[stressed_syllable] = max_stress; } } break; case 3: // stress on last vowel if(stressed_syllable == 0) { /* no explicit stress - stress the final vowel */ stressed_syllable = vowel_count - 1; if(max_stress == 0) { vowel_stress[stressed_syllable] = 4; } max_stress = 4; } break; case 4: // stress on antipenultimate vowel if(stressed_syllable == 0) { stressed_syllable = vowel_count - 3; if(stressed_syllable < 1) stressed_syllable = 1; if(max_stress == 0) { vowel_stress[stressed_syllable] = 4; } max_stress = 4; } break; case 5: // LANG=Russian if(stressed_syllable == 0) { /* no explicit stress - guess the stress from the number of syllables */ static char guess_ru[16] = {0,0,1,1,2,3,3,4,5,6,7,7,8,9,10,11}; static char guess_ru_v[16] = {0,0,1,1,2,2,3,3,4,5,6,7,7,8,9,10}; // for final phoneme is a vowel static char guess_ru_t[16] = {0,0,1,2,3,3,3,4,5,6,7,7,7,8,9,10}; // for final phoneme is an unvoiced stop stressed_syllable = vowel_count - 3; if(vowel_count < 16) { if(phoneme_tab[final_ph]->type == phVOWEL) stressed_syllable = guess_ru_v[vowel_count]; else if(phoneme_tab[final_ph]->type == phSTOP) stressed_syllable = guess_ru_t[vowel_count]; else stressed_syllable = guess_ru[vowel_count]; } vowel_stress[stressed_syllable] = 4; max_stress = 4; } break; case 6: // LANG=hi stress on the last heaviest syllable if(stressed_syllable == 0) { int wt; int max_weight = -1; int prev_stressed; // find the heaviest syllable, excluding the final syllable for(ix = 1; ix < (vowel_count-1); ix++) { if(vowel_stress[ix] == 0) { if((wt = syllable_weight[ix]) >= max_weight) { max_weight = wt; prev_stressed = stressed_syllable; stressed_syllable = ix; } } } if((syllable_weight[vowel_count-1] == 2) && (max_weight< 2)) { // the only double=heavy syllable is the final syllable, so stress this stressed_syllable = vowel_count-1; } else if(max_weight <= 0) { // all syllables, exclusing the last, are light. Stress the first syllable stressed_syllable = 1; } vowel_stress[stressed_syllable] = 4; max_stress = 4; } break; case 9: // mark all as stressed for(ix=1; ix 2) && (vowel_stress[2] >= 4)) { vowel_stress[1] = 3; } } #endif done = 0; for(v=1; v 1) && (langopts.stress_flags & 0x40) && (syllable_weight[v]==0) && (syllable_weight[v+1]>0)) { // don't put secondary stress on a light syllable which is followed by a heavy syllable continue; } // should start with secondary stress on the first syllable, or should it count back from // the primary stress and put secondary stress on alternate syllables? vowel_stress[v] = (char)stress; done =1; stress = 3; /* use secondary stress for remaining syllables */ } } } if((unstressed_word) && (tonic < 0)) { if(vowel_count <= 2) tonic = langopts.unstressed_wd1; /* monosyllable - unstressed */ else tonic = langopts.unstressed_wd2; /* more than one syllable, used secondary stress as the main stress */ } max_stress = 0; max_stress_posn = 0; for(v=1; v= max_stress) { max_stress = vowel_stress[v]; max_stress_posn = v; } } if(tonic >= 0) { /* find position of highest stress, and replace it by 'tonic' */ /* don't disturb an explicitly set stress by 'unstress-at-end' flag */ if((tonic > max_stress) || (max_stress <= 4)) vowel_stress[max_stress_posn] = (char)tonic; max_stress = tonic; } /* produce output phoneme string */ p = phonetic; v = 1; if((ph = phoneme_tab[*p]) != NULL) { if(ph->type == phSTRESS) ph = phoneme_tab[p[1]]; #ifdef deleted int gap = langopts.word_gap & 0x700; if((gap) && (vowel_stress[1] >= 4) && (prev_stress >= 4)) { /* two primary stresses together, insert a short pause */ *output++ = pause_phonemes[gap >> 8]; } else #endif if((langopts.vowel_pause & 0x30) && (ph->type == phVOWEL)) { // word starts with a vowel if((langopts.vowel_pause & 0x20) && (vowel_stress[1] >= 4)) { *output++ = phonPAUSE_NOLINK; // not to be replaced by link } else { *output++ = phonPAUSE_VSHORT; // break, but no pause } } } p = phonetic; post_tonic = 0; while(((phcode = *p++) != 0) && (output < max_output)) { if((ph = phoneme_tab[phcode]) == NULL) continue; // if(ph->type == phSTRESS) // continue; if(ph->type == phPAUSE) { prev_last_stress = 0; } else if(((ph->type == phVOWEL) && !(ph->phflags & phNONSYLLABIC)) || (*p == phonSYLLABIC)) { // a vowel, or a consonant followed by a syllabic consonant marker v_stress = vowel_stress[v]; prev_last_stress = v_stress; if(vowel_stress[v-1] >= max_stress) post_tonic = 1; if(v_stress <= 1) { if((v > 1) && (max_stress >= 4) && (langopts.stress_flags & 4) && (v == (vowel_count-1))) { // option: mark unstressed final syllable as diminished v_stress = 1; } else if((langopts.stress_flags & 2) || (v == 1) || (v == (vowel_count-1))) { // first or last syllable, or option 'don't set diminished stress' v_stress = 0; } else if((v == (vowel_count-2)) && (vowel_stress[vowel_count-1] <= 1)) { // penultimate syllable, followed by an unstressed final syllable v_stress = 0; } else { // unstressed syllable within a word if((vowel_stress[v-1] != 1) || ((langopts.stress_flags & 0x10000) == 0)) { v_stress = 1; /* change from 0 (unstressed) to 1 (diminished stress) */ vowel_stress[v] = v_stress; } } } if(v_stress > 0) *output++ = stress_phonemes[v_stress]; // mark stress of all vowels except 0 (unstressed) if(vowel_stress[v] > max_stress) { max_stress = vowel_stress[v]; } if((*p == phonLENGTHEN) && ((opt_length = langopts.param[LOPT_IT_LENGTHEN]) != 0)) { // remove lengthen indicator from non-stressed syllables int shorten=0; if(opt_length & 0x10) { // only allow lengthen indicator on the highest stress syllable in the word if(v != max_stress_posn) shorten = 1; } else if(v_stress < 4) { // only allow lengthen indicator if stress >= 4. shorten = 1; } if(((opt_length & 0xf)==2) && (v != (vowel_count - 2))) shorten = 1; // LANG=Italian, remove lengthen indicator from non-penultimate syllables if(shorten) p++; } v++; } if(phcode != 1) *output++ = phcode; } *output++ = 0; } /* end of SetWordStress */ //============================================================================================= // Look up a word in the pronunciation rules // //============================================================================================= #ifdef LOG_TRANSLATE char *Translator::DecodeRule(const char *group, char *rule) {//================================================== /* Convert compiled match template to ascii */ unsigned char rb; unsigned char c; char *p; int ix; int match_type; int finished=0; int value; int linenum=0; int flags; int suffix_char; int condition_num=0; char buf[60]; char buf_pre[60]; char suffix[20]; static char output[60]; static char symbols[] = {' ',' ',' ',' ',' ',' ',' ',' ',' ', '@','&','%','+','#','S','D','Z','A','L',' ',' ',' ',' ',' ','N','K','V',' ','T','X','?','W'}; static char symbols_lg[] = {'A','B','C','H','F','G','Y'}; match_type = 0; buf_pre[0] = 0; strcpy(buf,group); p = &buf[strlen(buf)]; while(!finished) { rb = *rule++; if(rb <= RULE_LINENUM) { switch(rb) { case 0: case RULE_PHONEMES: finished=1; break; case RULE_PRE: match_type = RULE_PRE; *p = 0; p = buf_pre; break; case RULE_POST: match_type = RULE_POST; *p = 0; strcat(buf," ("); p = &buf[strlen(buf)]; break; case RULE_PH_COMMON: break; case RULE_CONDITION: /* conditional rule, next byte gives condition number */ condition_num = *rule++; break; case RULE_LINENUM: value = (rule[1] & 0xff) - 1; linenum = (rule[0] & 0xff) - 1 + (value * 255); rule+=2; break; } continue; } if(rb == RULE_ENDING) { static const char *flag_chars = "ei vtfq t"; flags = ((rule[0] & 0x7f)<< 8) + (rule[1] & 0x7f); suffix_char = 'S'; if(flags & (SUFX_P >> 8)) suffix_char = 'P'; sprintf(suffix,"%c%d",suffix_char,rule[2] & 0x7f); rule += 3; for(ix=0;ix<9;ix++) { if(flags & 1) sprintf(&suffix[strlen(suffix)],"%c",flag_chars[ix]); flags = (flags >> 1); } strcpy(p,suffix); p += strlen(suffix); c = ' '; } else if(rb == RULE_LETTERGP) { c = symbols_lg[*rule++ - 'A']; } else if(rb == RULE_LETTERGP2) { value = *rule++ - 'A'; p[0] = 'L'; p[1] = (value / 10) + '0'; c = (value % 10) + '0'; if(match_type == RULE_PRE) { p[0] = c; c = 'L'; } p+=2; } else if(rb <= RULE_LAST_RULE) c = symbols[rb]; else if(rb == RULE_SPACE) c = '_'; else c = rb; *p++ = c; } *p = 0; p = output; if(linenum > 0) { sprintf(p,"%5d:\t",linenum); p += 7; } if(condition_num > 0) { sprintf(p,"?%d ",condition_num); p = &p[strlen(p)]; } if((ix = strlen(buf_pre)) > 0) { while(--ix >= 0) *p++ = buf_pre[ix]; *p++ = ')'; *p++ = ' '; } *p = 0; strcat(p,buf); ix = strlen(output); while(ix < 8) output[ix++]=' '; output[ix]=0; return(output); } /* end of decode_match */ #endif void Translator::AppendPhonemes(char *string, int size, const char *ph) {//==================================================================== /* Add new phoneme string "ph" to "string" Keeps count of the number of vowel phonemes in the word, and whether these can be stressed syllables. These values can be used in translation rules */ const char *p; unsigned char c; int unstress_mark; int length; length = strlen(ph) + strlen(string); if(length >= size) { return; } /* any stressable vowel ? */ unstress_mark = 0; p = ph; while((c = *p++) != 0) { if(c >= n_phoneme_tab) continue; if(phoneme_tab[c]->type == phSTRESS) { if(phoneme_tab[c]->std_length < 4) unstress_mark = 1; } else { if(phoneme_tab[c]->type == phVOWEL) { if(((phoneme_tab[c]->phflags & phUNSTRESSED) == 0) && (unstress_mark == 0)) { word_stressed_count++; } unstress_mark = 0; word_vowel_count++; } } } if(string != NULL) strcat(string,ph); } /* end of AppendPhonemes */ void Translator::MatchRule(char *word[], const char *group, char *rule, MatchRecord *match_out, int word_flags, int dict_flags) {//============================================================================================================================ /* Checks a specified word against dictionary rules. Returns with phoneme code string, or NULL if no match found. word (indirect) points to current character group within the input word This is advanced by this procedure as characters are consumed group: the initial characters used to choose the rules group rule: address of dictionary rule data for this character group match_out: returns best points score word_flags: indicates whether this is a retranslation after a suffix has been removed */ unsigned char rb; // current instuction from rule unsigned char letter; // current letter from input word, single byte int letter_w; // current letter, wide character int letter_xbytes; // number of extra bytes of multibyte character (num bytes - 1) unsigned char last_letter; char *pre_ptr; char *post_ptr; /* pointer to first character after group */ char *rule_start; /* start of current match template */ char *p; int match_type; /* left, right, or consume */ int failed; int consumed; /* number of letters consumed from input */ int count; /* count through rules in the group */ int syllable_count; int vowel; int letter_group; int distance_right; int distance_left; int lg_pts; int n_bytes; MatchRecord match; static MatchRecord best; int total_consumed; /* letters consumed for best match */ int group_length; unsigned char condition_num; char *common_phonemes; /* common to a group of entries */ if(rule == NULL) { match_out->points = 0; (*word)++; return; } total_consumed = 0; count = 0; common_phonemes = NULL; match_type = 0; best.points = 0; best.phonemes = ""; best.end_type = 0; best.del_fwd = NULL; group_length = strlen(group); /* search through dictionary rules */ while(rule[0] != RULE_GROUP_END) { match_type=0; consumed = 0; letter = 0; distance_right= -6; /* used to reduce points for matches further away the current letter */ distance_left= -2; count++; match.points = 1; match.end_type = 0; match.del_fwd = NULL; pre_ptr = *word; post_ptr = *word + group_length; /* work through next rule until end, or until no-match proved */ rule_start = rule; failed = 0; while(!failed) { rb = *rule++; if(rb <= RULE_LINENUM) { switch(rb) { case 0: // no phoneme string for this rule, use previous common rule if(common_phonemes != NULL) { match.phonemes = common_phonemes; if(*match.phonemes == RULE_CONDITION) match.phonemes += 2; // skip over condition number while(((rb = *match.phonemes++) != 0) && (rb != RULE_PHONEMES)); } else { match.phonemes = ""; } rule--; // so we are still pointing at the 0 failed=2; // matched OK break; case RULE_PRE: match_type = RULE_PRE; break; case RULE_POST: match_type = RULE_POST; break; case RULE_PHONEMES: match.phonemes = rule; failed=2; // matched OK break; case RULE_PH_COMMON: common_phonemes = rule; break; case RULE_CONDITION: /* conditional rule, next byte gives condition number */ condition_num = *rule++; if(condition_num >= 32) { // allow the rule only if the condition number is NOT set if((dict_condition & (1L << (condition_num-32))) != 0) failed = 1; } else { // allow the rule only if the condition number is set if((dict_condition & (1L << condition_num)) == 0) failed = 1; } if(!failed) match.points++; // add one point for a matched conditional rule break; case RULE_LINENUM: rule+=2; break; } continue; } switch(match_type) { case 0: /* match and consume this letter */ last_letter = letter; letter = *post_ptr++; if((letter == rb) || ((letter==(unsigned char)REPLACED_E) && (rb=='e'))) { match.points += 21; consumed++; } else failed = 1; break; case RULE_POST: /* continue moving fowards */ distance_right += 6; if(distance_right > 18) distance_right = 19; last_letter = letter; letter_xbytes = utf8_in(&letter_w,post_ptr,0)-1; letter = *post_ptr++; switch(rb) { case RULE_LETTERGP: letter_group = *rule++ - 'A'; if(IsLetter(letter_w,letter_group)) { lg_pts = 20; if(letter_group==2) lg_pts = 19; // fewer points for C, general consonant match.points += (lg_pts-distance_right); post_ptr += letter_xbytes; } else failed = 1; break; case RULE_LETTERGP2: // match against a list of utf-8 strings letter_group = *rule++ - 'A'; if((n_bytes = IsLetterGroup(post_ptr-1,letter_group,0)) >0) { match.points += (20-distance_right); post_ptr += (n_bytes-1); } else failed =1; break; case RULE_NOTVOWEL: if(!IsLetter(letter_w,0)) { match.points += (20-distance_right); post_ptr += letter_xbytes; } else failed = 1; break; case RULE_DIGIT: if(IsDigit(letter_w)) { match.points += (21-distance_right); post_ptr += letter_xbytes; } else if(langopts.tone_numbers) { // also match if there is no digit match.points += (21-distance_right); post_ptr--; } else failed = 1; break; case RULE_NONALPHA: if(!iswalpha(letter_w)) { match.points += (21-distance_right); post_ptr += letter_xbytes; } else failed = 1; break; case RULE_DOUBLE: if(letter == last_letter) match.points += (21-distance_right); else failed = 1; break; case RULE_ALT1: if(dict_flags & FLAG_ALT_TRANS) match.points++; else failed = 1; break; case '-': if((letter == '-') || ((letter == ' ') && (word_flags & FLAG_HYPHEN_AFTER))) { match.points += (22-distance_right); // one point more than match against space } else failed = 1; break; case RULE_SYLLABLE: { /* more than specified number of vowel letters to the right */ char *p = post_ptr + letter_xbytes; syllable_count = 1; while(*rule == RULE_SYLLABLE) { rule++; syllable_count+=1; /* number of syllables to match */ } vowel = 0; while(letter_w != RULE_SPACE) { if((vowel==0) && IsLetter(letter_w,LETTERGP_VOWEL2)) { // this is counting vowels which are separated by non-vowels syllable_count--; } vowel = IsLetter(letter_w,LETTERGP_VOWEL2); p += utf8_in(&letter_w,p,0); } if(syllable_count <= 0) match.points+= (19-distance_right); else failed = 1; } break; case RULE_NOVOWELS: { char *p = post_ptr + letter_xbytes; while(letter_w != RULE_SPACE) { if(IsLetter(letter_w,LETTERGP_VOWEL2)) { failed = 1; break; } p += utf8_in(&letter_w,p,0); } if(!failed) match.points += (19-distance_right); } break; case RULE_INC_SCORE: match.points += 20; // force an increase in points break; case RULE_DEL_FWD: // find the next 'e' in the word and replace by '' for(p = *word + group_length; *p != ' '; p++) { if(*p == 'e') { match.del_fwd = p; break; } } break; case RULE_ENDING: // next 3 bytes are a (non-zero) ending type. 2 bytes of flags + suffix length match.end_type = (rule[0] << 16) + ((rule[1] & 0x7f) << 8) + (rule[2] & 0x7f); rule += 3; break; case RULE_NO_SUFFIX: if(word_flags & FLAG_SUFFIX_REMOVED) failed = 1; // a suffix has been removed else match.points++; break; default: if(letter == rb) { if(letter == RULE_SPACE) match.points += (21-distance_right); else match.points += (21-distance_right); } else failed = 1; break; } break; case RULE_PRE: /* match backwards from start of current group */ distance_left += 2; if(distance_left > 18) distance_left = 19; last_letter = *pre_ptr; pre_ptr--; letter_xbytes = utf8_in(&letter_w,pre_ptr,1)-1; letter = *pre_ptr; switch(rb) { case RULE_LETTERGP: letter_group = *rule++ - 'A'; if(IsLetter(letter_w,letter_group)) { lg_pts = 20; if(letter_group==2) lg_pts = 19; // fewer points for C, general consonant match.points += (lg_pts-distance_left); pre_ptr -= letter_xbytes; } else failed = 1; break; case RULE_LETTERGP2: // match against a list of utf-8 strings letter_group = *rule++ - 'A'; if((n_bytes = IsLetterGroup(pre_ptr-letter_xbytes,letter_group,1)) >0) { match.points += (20-distance_right); pre_ptr -= (n_bytes-1); } else failed =1; break; case RULE_NOTVOWEL: if(!IsLetter(letter_w,0)) { match.points += (20-distance_left); pre_ptr -= letter_xbytes; } else failed = 1; break; case RULE_DOUBLE: if(letter == last_letter) match.points += (21-distance_left); else failed = 1; break; case RULE_DIGIT: if(IsDigit(letter_w)) { match.points += (21-distance_left); pre_ptr -= letter_xbytes; } else failed = 1; break; case RULE_NONALPHA: if(!iswalpha(letter_w)) { match.points += (21-distance_right); pre_ptr -= letter_xbytes; } else failed = 1; break; case RULE_SYLLABLE: /* more than specified number of vowels to the left */ syllable_count = 1; while(*rule == RULE_SYLLABLE) { rule++; syllable_count++; /* number of syllables to match */ } if(syllable_count <= word_vowel_count) match.points+= (19-distance_left); else failed = 1; break; case RULE_STRESSED: if(word_stressed_count > 0) match.points += 19; else failed = 1; break; case RULE_NOVOWELS: { char *p = pre_ptr - letter_xbytes - 1; while(letter_w != RULE_SPACE) { if(IsLetter(letter_w,LETTERGP_VOWEL2)) { failed = 1; break; } p -= utf8_in(&letter_w,p,1); } if(!failed) match.points += 3; } break; case RULE_IFVERB: if(expect_verb) match.points += 1; else failed = 1; break; case RULE_CAPITAL: if(word_flags & FLAG_FIRST_UPPER) match.points += 1; else failed = 1; break; case '.': // dot in pre- section, match on any dot before this point in the word for(p=pre_ptr; *p != ' '; p--) { if(*p == '.') { match.points +=50; break; } } if(*p == ' ') failed = 1; break; case '-': if((letter == '-') || ((letter == ' ') && (word_flags & FLAG_HYPHEN))) { match.points += (22-distance_right); // one point more than match against space } else failed = 1; break; default: if(letter == rb) { if(letter == RULE_SPACE) match.points += 4; else match.points += (21-distance_left); } else failed = 1; break; } break; } } if(failed == 2) { /* matched OK, is this better than the last best match ? */ if(match.points >= best.points) { memcpy(&best,&match,sizeof(match)); total_consumed = consumed; } #ifdef LOG_TRANSLATE if((option_phonemes == 2) && (match.points > 0) && ((word_flags & FLAG_NO_TRACE) == 0)) { // show each rule that matches, and it's points score int pts; char decoded_phonemes[80]; // note: 'count' contains the rule number, if we want to include it pts = match.points; if(group_length > 1) pts += 35; // to account for an extra letter matching DecodePhonemes(match.phonemes,decoded_phonemes); fprintf(f_trans,"%3d\t%s [%s]\n",pts,DecodeRule(group,rule_start),decoded_phonemes); } #endif } /* skip phoneme string to reach start of next template */ while(*rule++ != 0); } #ifdef LOG_TRANSLATE if((option_phonemes == 2) && ((word_flags & FLAG_NO_TRACE)==0)) { if(group_length <= 1) fprintf(f_trans,"\n"); } #endif /* advance input data pointer */ total_consumed += group_length; if(total_consumed == 0) total_consumed = 1; /* always advance over 1st letter */ *word += total_consumed; if(best.points == 0) best.phonemes = ""; memcpy(match_out,&best,sizeof(MatchRecord)); } /* end of MatchRule */ int Translator::TranslateRules(char *p_start, char *phonemes, int ph_size, char *end_phonemes, int word_flags, int dict_flags) {//=========================================================================================================================== /* Translate a word bounded by space characters Append the result to 'phonemes' and any standard prefix/suffix in 'end_phonemes' */ unsigned char c, c2; unsigned int c12; int wc=0; int wc_prev; int wc_bytes; char *p2; /* copy of p for use in double letter chain match */ int found; int g; /* group chain number */ int g1; /* first group for this letter */ int n; int letter; int any_alpha=0; int ix; int digit_count=0; char *p; MatchRecord match1; MatchRecord match2; char ph_buf[40]; char word_copy[N_WORD_BYTES]; static const char str_pause[2] = {phonPAUSE_NOLINK,0}; char group_name[4]; if(data_dictrules == NULL) return(0); for(ix=0; ix<(N_WORD_BYTES-1);) { c = p_start[ix]; word_copy[ix++] = c; } word_copy[ix] = 0; #ifdef LOG_TRANSLATE if((option_phonemes == 2) && ((word_flags & FLAG_NO_TRACE)==0)) { char wordbuf[120]; int ix; for(ix=0; ((c = p_start[ix]) != ' ') && (c != 0); ix++) { wordbuf[ix] = c; } wordbuf[ix] = 0; fprintf(f_trans,"Translate '%s'\n",wordbuf); } #endif p = p_start; word_vowel_count = 0; word_stressed_count = 0; if(end_phonemes != NULL) end_phonemes[0] = 0; while(((c = *p) != ' ') && (c != 0)) { if(IsAlpha(wc)) any_alpha = wc; wc_prev = wc; wc_bytes = utf8_in(&wc,p,0); n = groups2_count[c]; if(IsDigit(wc) && ((langopts.tone_numbers == 0) || !any_alpha)) { // lookup the number in *_list not *_rules char string[8]; char buf[40]; string[0] = '_'; memcpy(&string[1],p,wc_bytes); string[1+wc_bytes] = 0; Lookup(string,buf); if(++digit_count >= 2) { strcat(buf,str_pause); digit_count=0; } AppendPhonemes(phonemes,ph_size,buf); p += wc_bytes; continue; // MatchRule(&p, "", groups1[(unsigned char)'9'],&match1,word_flags); // if(match1.points == 0) // p++; // not found, move on past this digit } else { digit_count = 0; found = 0; if(n > 0) { /* there are some 2 byte chains for this initial letter */ c2 = p[1]; c12 = c + (c2 << 8); /* 2 characters */ g1 = groups2_start[c]; for(g=g1; g < (g1+n); g++) { if(groups2_name[g] == c12) { found = 1; group_name[0] = c; group_name[1] = c2; group_name[2] = 0; p2 = p; MatchRule(&p2, group_name, groups2[g], &match2, word_flags, dict_flags); if(match2.points > 0) match2.points += 35; /* to acount for 2 letters matching */ /* now see whether single letter chain gives a better match ? */ group_name[1] = 0; MatchRule(&p, group_name, groups1[c], &match1, word_flags, dict_flags); if(match2.points >= match1.points) { // use match from the 2-letter group memcpy(&match1,&match2,sizeof(MatchRecord)); p = p2; } } } } if(!found) { /* alphabetic, single letter chain */ group_name[0] = c; group_name[1] = 0; if(groups1[c] != NULL) MatchRule(&p, group_name, groups1[c], &match1, word_flags, dict_flags); else { // no group for this letter, use default group MatchRule(&p, "", groups1[0], &match1, word_flags, dict_flags); if(match1.points == 0) { // no match, try removing the accent and re-translating the word n = utf8_in(&letter,p-1,0)-1; if((letter >= 0xc0) && (letter <= 0x241)) { // within range of the remove_accent table p2 = p-1; p[-1] = remove_accent[letter-0xc0]; while((p[0] = p[n]) != ' ') p++; while(n-- > 0) *p++ = ' '; // replacement character must be no longer than original if(langopts.param[LOPT_DIERESES] && (lookupwchar(diereses_list,letter) > 0)) { // vowel with dieresis, replace and continue from this point p = p2; continue; } phonemes[0] = 0; // delete any phonemes which have been produced so far p = p_start; word_vowel_count = 0; word_stressed_count = 0; continue; // start again at the beginning of the word } else if((letter >= 0x3200) && (letter < 0xa700) && (end_phonemes != NULL)) { // ideograms // outside the range of the accent table, speak the unknown symbol sound Lookup("_??",ph_buf); match1.phonemes = ph_buf; match1.points = 1; p += (wc_bytes-1); } } } } } if(match1.phonemes == NULL) match1.phonemes = ""; if(match1.points > 0) { if((match1.phonemes[0] == phonSWITCH) && ((word_flags & FLAG_DONT_SWITCH_TRANSLATOR)==0)) { // an instruction to switch language, return immediately so we can re-translate strcpy(phonemes,match1.phonemes); return(0); } if((match1.end_type != 0) && (end_phonemes != NULL)) { /* a standard ending has been found, re-translate the word without it */ if((match1.end_type & SUFX_P) && (word_flags & FLAG_NO_PREFIX)) { // ignore the match on a prefix } else { if((match1.end_type & SUFX_P) && ((match1.end_type & 0x7f) == 0)) { // no prefix length specified match1.end_type |= p - p_start; } strcpy(end_phonemes,match1.phonemes); memcpy(p_start,word_copy,strlen(word_copy)); return(match1.end_type); } } if(match1.del_fwd != NULL) *match1.del_fwd = REPLACED_E; AppendPhonemes(phonemes,ph_size,match1.phonemes); } } // any language specific changes ? ApplySpecialAttribute(phonemes,dict_flags); memcpy(p_start,word_copy,strlen(word_copy)); return(0); } /* end of TranslateRules */ void Translator::ApplySpecialAttribute(char *phonemes, int dict_flags) {//=================================================================== // Amend the translated phonemes according to an attribute which is specific for the language. int len; int ix; char *p_end; int phoneme_1; if((dict_flags & (FLAG_ALT_TRANS | FLAG_ALT2_TRANS)) == 0) return; len = strlen(phonemes); p_end = &phonemes[len-1]; switch(translator_name) { case L('d','e'): if(p_end[0] == LookupPh("i:")) { // words ends in ['i:], change to [=I@] p_end[-1] = phonSTRESS_PREV; p_end[0] = LookupPh("I"); p_end[1] = phonSCHWA; p_end[2] = 0; } break; case L('p','t'): phoneme_1 = LookupPh("o"); for(ix=0; ix<(len-1); ix++) { if(phonemes[ix] == phoneme_1) { phonemes[ix] = LookupPh("O"); break; } } break; case L('r','o'): if(p_end[0] == LookupPh("j")) { // word end in [j], change to ['i] p_end[0] = phonSTRESS_P; p_end[1] = LookupPh("i"); p_end[2] = 0; } break; } } // end of ApplySpecialAttribute //============================================================================================= // Look up a word in the pronunciation dictionary list // - exceptions which override the usual pronunciation rules, or which give a word // special properties, such as pronounce as unstressed //============================================================================================= // common letter pairs, encode these as a single byte static const short pairs_ru[] = { 0x010c, // ла 21052 0x23 0x010e, // на 18400 0x0113, // та 14254 0x0301, // ав 31083 0x030f, // ов 13420 0x060e, // не 21798 0x0611, // ре 19458 0x0903, // ви 16226 0x0b01, // ак 14456 0x0b0f, // ок 17836 0x0c01, // ал 13324 0x0c09, // ил 16877 0x0e01, // ан 15359 0x0e06, // ен 13543 0x30 0x0e09, // ин 17168 0x0e0e, // нн 15973 0x0e0f, // он 22373 0x0e1c, // ын 15052 0x0f03, // во 24947 0x0f11, // ро 13552 0x0f12, // со 16368 0x100f, // оп 19054 0x1011, // рп 17067 0x1101, // ар 23967 0x1106, // ер 18795 0x1109, // ир 13797 0x110f, // ор 21737 0x1213, // тс 25076 0x1220, // яс 14310 0x7fff}; //0x040f ог 12976 //0x1306 ет 12826 //0x0f0d мо 12688 int TransposeAlphabet(char *text, int offset, int min, int max) {//============================================================ // transpose cyrillic alphabet (for example) into ascii (single byte) character codes // return: number of bytes, bit 6: 1=used compression int c; int c2; int ix; char *p = text; char *p2 = text; int all_alpha=1; int bits; int acc; do { p += utf8_in(&c,p,0); if((c >= min) && (c <= max)) { *p2++ = c - offset; } else if(c != 0) { p2 += utf8_out(c,p2); all_alpha=0; } } while (c != 0); *p2 = 0; if(all_alpha) { // compress to 6 bits per character acc=0; bits=0; p = text; p2 = text; while((c = *p++) != 0) { c2 = c + (*p << 8); for(ix=0; c2 >= pairs_ru[ix]; ix++) { if(c2 == pairs_ru[ix]) { // found an encoding for a 2-character pair c = ix + 0x23; // 2-character codes start at 0x23 p++; break; } } acc = (acc << 6) + (c & 0x3f); bits += 6; if(bits >= 8) { bits -= 8; *p2++ = (acc >> bits); } } if(bits > 0) { *p2++ = (acc << (8-bits)); } *p2 = 0; return((p2 - text) | 0x40); // bit 6 indicates compressed characters } return(p2 - text); } // end of TransposeAlphabet char *print_dflags(unsigned int *flags) {//==================================== static char buf[20]; sprintf(buf,"%s 0x%x/%x",LookupMnem(mnem_flags,(flags[0] & 0xf)+0x40), flags[0], flags[1]); return(buf); } const char *Translator::LookupDict2(const char *word, const char *word2, char *phonetic, unsigned int *flags, int end_flags, WORD_TAB *wtab) //========================================================================================================================================== /* Find an entry in the word_dict file for a specified word. Returns NULL if no match, else returns 'word_end' word zero terminated word to match word2 pointer to next word(s) in the input text (terminated by space) flags: returns dictionary flags which are associated with a matched word end_flags: indicates whether this is a retranslation after removing a suffix */ { char *p; char *next; int hash; int phoneme_len; int wlen; unsigned char flag; unsigned int dictionary_flags; unsigned int dictionary_flags2; int condition_failed=0; int n_chars; int no_phonemes; int skipwords; int ix; const char *word_end; const char *word1; char word_buf[N_WORD_BYTES]; word1 = word; if(transpose_offset > 0) { strcpy(word_buf,word); wlen = TransposeAlphabet(word_buf, transpose_offset, transpose_min, transpose_max); word = word_buf; } else { wlen = strlen(word); } hash = HashDictionary(word); p = dict_hashtab[hash]; if(p == NULL) { if(flags != NULL) *flags = 0; return(0); } // Find the first entry in the list for this hash value which matches. // This corresponds to the last matching entry in the *_list file. while(*p != 0) { next = p + p[0]; if(((p[1] & 0x7f) != wlen) || (memcmp(word,&p[2],wlen & 0x3f) != 0)) { // bit 6 of wlen indicates whether the word has been compressed; so we need to match on this also. p = next; continue; } /* found matching entry. Decode the phonetic string */ word_end = word2; dictionary_flags = 0; dictionary_flags2 = 0; no_phonemes = p[1] & 0x80; p += ((p[1] & 0x3f) + 2); if(no_phonemes) { phonetic[0] = 0; phoneme_len = 0; } else { strcpy(phonetic,p); phoneme_len = strlen(p); p += (phoneme_len + 1); } while(p < next) { // examine the flags which follow the phoneme string flag = *p++; if(flag >= 100) { // conditional rule if(flag >= 132) { // fail if this condition is set if((dict_condition & (1 << (flag-132))) != 0) condition_failed = 1; } else { // allow only if this condition is set if((dict_condition & (1 << (flag-100))) == 0) condition_failed = 1; } } else if(flag > 80) { // flags 81 to 90 match more than one word // This comes after the other flags n_chars = next - p; skipwords = flag - 80; // don't use the contraction if any of the words are emphasized for(ix=0; ix <= skipwords; ix++) { if((wtab != NULL) && (wtab[ix].flags & FLAG_EMPHASIZED)) { condition_failed = 1; } } if(memcmp(word2,p,n_chars) != 0) condition_failed = 1; if(condition_failed) { p = next; break; } dictionary_flags |= FLAG_SKIPWORDS; dictionary_skipwords = skipwords; p = next; word_end = word2 + n_chars; } else if(flag > 64) { // stressed syllable information, put in bits 0-3 dictionary_flags = (dictionary_flags & ~0xf) | (flag & 0xf); if((flag & 0xc) == 0xc) dictionary_flags |= FLAG_STRESS_END; } else if(flag >= 32) { dictionary_flags2 |= (1L << (flag-32)); } else { dictionary_flags |= (1L << flag); } } if(condition_failed) { condition_failed=0; continue; } if((end_flags & FLAG_SUFX)==0) { // no suffix has been removed if(dictionary_flags & FLAG_STEM) continue; // this word must have a suffix } if((end_flags & SUFX_P) && (dictionary_flags & (FLAG_ONLY | FLAG_ONLY_S))) continue; // $only or $onlys, don't match if a prefix has been removed if(end_flags & FLAG_SUFX) { // a suffix was removed from the word if(dictionary_flags & FLAG_ONLY) continue; // no match if any suffix if((dictionary_flags & FLAG_ONLY_S) && ((end_flags & FLAG_SUFX_S)==0)) { // only a 's' suffix allowed, but the suffix wasn't 's' continue; } } if(dictionary_flags2 & FLAG_CAPITAL) { if(!(word_flags & FLAG_FIRST_UPPER)) { continue; } } if(dictionary_flags2 & FLAG_ALLCAPS) { if(!(word_flags & FLAG_ALL_UPPER)) { continue; } } if((dictionary_flags & FLAG_ATEND) && (word_end < clause_end)) { // only use this pronunciation if it's the last word of the clause continue; } if(dictionary_flags2 & FLAG_VERB) { // this is a verb-form pronunciation if(expect_verb || (expect_verb_s && (end_flags & FLAG_SUFX_S))) { // OK, we are expecting a verb } else { /* don't use the 'verb' pronunciation unless we are expecting a verb */ continue; } } if(dictionary_flags2 & FLAG_PAST) { if(!expect_past) { /* don't use the 'past' pronunciation unless we are expecting past tense */ continue; } } if(dictionary_flags2 & FLAG_NOUN) { if(!expect_noun) { /* don't use the 'noun' pronunciation unless we are expecting a noun */ continue; } } if(flags != NULL) { flags[0] = dictionary_flags | FLAG_FOUND_ATTRIBUTES; flags[1] = dictionary_flags2; } if(phoneme_len == 0) { if(option_phonemes == 2) { fprintf(f_trans,"Flags: %s %s\n",word1,print_dflags(flags)); } return(0); // no phoneme translation found here, only flags. So use rules } if(flags != NULL) flags[0] |= FLAG_FOUND; // this flag indicates word was found in dictionary if(option_phonemes == 2) { unsigned int flags1 = 0; char ph_decoded[N_WORD_PHONEMES]; int textmode; DecodePhonemes(phonetic,ph_decoded); if(flags != NULL) flags1 = flags[0]; if((dictionary_flags & FLAG_TEXTMODE) == 0) textmode = 0; else textmode = 1; if(textmode == translator->langopts.textmode) { // only show this line if the word translates to phonemes, not replacement text fprintf(f_trans,"Found: %s [%s] %s\n",word1,ph_decoded,print_dflags(flags)); } } return(word_end); } return(0); } // end of LookupDict2 int Translator::LookupDictList(char **wordptr, char *ph_out, unsigned int *flags, int end_flags, WORD_TAB *wtab) //============================================================================================================== /* Lookup a specified word in the word dictionary. Returns phonetic data in 'phonetic' and bits in 'flags' end_flags: indicates if a suffix has been removed */ { int length; const char *found; const char *word1; const char *word2; unsigned char c; int nbytes; int len; char word[N_WORD_BYTES]; static char word_replacement[N_WORD_BYTES]; length = 0; word2 = word1 = *wordptr; while((word2[nbytes = utf8_nbytes(word2)]==' ') && (word2[nbytes+1]=='.')) { // look for an abbreviation of the form a.b.c // try removing the spaces between the dots and looking for a match memcpy(&word[length],word2,nbytes); length += nbytes; word[length++] = '.'; word2 += nbytes+3; } if(length > 0) { // found an abbreviation containing dots nbytes = utf8_nbytes(word2); memcpy(&word[length],word2,nbytes); word[length+nbytes] = 0; found = LookupDict2(word, word2, ph_out, flags, end_flags, wtab); if(found) { // set the skip words flag flags[0] |= FLAG_SKIPWORDS; dictionary_skipwords = length; return(1); } } for(length=0; lengthi and e-dropping that were done when the suffix was added to the original word. */ int i; char *word_end; int len_ending; int end_flags; const char *p; int len; static char ending[12]; // these lists are language specific, but are only relevent if the 'e' suffix flag is used static const char *add_e_exceptions[] = { "ion", NULL }; static const char *add_e_additions[] = { "c", "rs", "ir", "ur", "ath", "ns", "lu", NULL }; for(word_end = word; *word_end != ' '; word_end++) { /* replace discarded 'e's */ if(*word_end == REPLACED_E) *word_end = 'e'; } i = word_end - word; memcpy(word_copy,word,i); word_copy[i] = 0; // look for multibyte characters to increase the number of bytes to remove for(len_ending = i = (end_type & 0xf); i>0 ;i--) // num.of characters of the suffix { word_end--; while((*word_end & 0xc0) == 0x80) { word_end--; // for multibyte characters len_ending++; } } // remove bytes from the end of the word and replace them by spaces for(i=0; i