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-rw-r--r--libfontenc/src/encparse.c1895
1 files changed, 947 insertions, 948 deletions
diff --git a/libfontenc/src/encparse.c b/libfontenc/src/encparse.c
index 675fc740b..3fe94e8c0 100644
--- a/libfontenc/src/encparse.c
+++ b/libfontenc/src/encparse.c
@@ -1,948 +1,947 @@
-/*
-Copyright (c) 1998-2001 by Juliusz Chroboczek
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-
-/* Parser for encoding files */
-
-/* This code assumes that we are using ASCII. We don't use the ctype
- functions, as they depend on the current locale. On the other
- hand, we do use strcasecmp, but only on strings that we've checked
- to be pure ASCII. Bloody ``Code Set Independence''. */
-
-#include <string.h>
-#include <stdio.h>
-
-#if defined(__SCO__) || defined(__UNIXWARE__)
-#include <strings.h>
-#endif
-
-#include <stdlib.h>
-
-#include "zlib.h"
-typedef gzFile FontFilePtr;
-#define FontFileGetc(f) gzgetc(f)
-#define FontFileOpen(filename) gzopen(filename, "rb")
-#define FontFileClose(f) gzclose(f)
-
-#define MAXFONTFILENAMELEN 1024
-#define MAXFONTNAMELEN 1024
-
-#include <X11/fonts/fontenc.h>
-#include "fontencI.h"
-
-#define MAXALIASES 20
-
-#define EOF_TOKEN -1
-#define ERROR_TOKEN -2
-#define EOL_TOKEN 0
-#define NUMBER_TOKEN 1
-#define KEYWORD_TOKEN 2
-
-#define EOF_LINE -1
-#define ERROR_LINE -2
-#define STARTENCODING_LINE 1
-#define STARTMAPPING_LINE 2
-#define ENDMAPPING_LINE 3
-#define CODE_LINE 4
-#define CODE_RANGE_LINE 5
-#define CODE_UNDEFINE_LINE 6
-#define NAME_LINE 7
-#define SIZE_LINE 8
-#define ALIAS_LINE 9
-#define FIRSTINDEX_LINE 10
-
-/* Return from lexer */
-#define MAXKEYWORDLEN 100
-
-static long number_value;
-static char keyword_value[MAXKEYWORDLEN+1];
-
-static long value1, value2, value3;
-
-/* Lexer code */
-
-/* Skip to the beginning of new line */
-static void
-skipEndOfLine(FontFilePtr f, int c)
-{
- if(c == 0)
- c = FontFileGetc(f);
-
- for(;;)
- if(c <= 0 || c == '\n')
- return;
- else
- c = FontFileGetc(f);
-}
-
-/* Get a number; we're at the first digit. */
-static unsigned
-getnum(FontFilePtr f, int c, int *cp)
-{
- unsigned n = 0;
- int base = 10;
-
- /* look for `0' or `0x' prefix */
- if(c == '0') {
- c = FontFileGetc(f);
- base = 8;
- if(c == 'x' || c == 'X') {
- base = 16;
- c = FontFileGetc(f);
- }
- }
-
- /* accumulate digits */
- for(;;) {
- if ('0' <= c && c <= '9') {
- n *= base; n += c - '0';
- } else if('a' <= c && c <= 'f') {
- n *= base; n += c - 'a' + 10;
- } else if('A' <=c && c <= 'F') {
- n *= base; n += c - 'A' + 10;
- } else
- break;
- c = FontFileGetc(f);
- }
-
- *cp = c; return n;
-}
-
-/* Skip to beginning of new line; return 1 if only whitespace was found. */
-static int
-endOfLine(FontFilePtr f, int c)
-{
- if(c == 0)
- c = FontFileGetc(f);
-
- for(;;) {
- if(c <= 0 || c == '\n')
- return 1;
- else if(c == '#') {
- skipEndOfLine(f,c);
- return 1;
- }
- else if(c == ' ' || c == '\t') {
- skipEndOfLine(f,c);
- return 0;
- }
- c = FontFileGetc(f);
- }
-}
-
-/* Get a token; we're at first char */
-static int
-gettoken(FontFilePtr f, int c, int *cp)
-{
- char *p;
-
- if(c <= 0)
- c = FontFileGetc(f);
-
- if(c <= 0) {
- return EOF_TOKEN;
- }
-
- while(c == ' ' || c == '\t')
- c = FontFileGetc(f);
-
- if(c=='\n') {
- return EOL_TOKEN;
- } else if(c == '#') {
- skipEndOfLine(f,c);
- return EOL_TOKEN;
- } else if(c >= '0' && c <= '9') {
- number_value = getnum(f,c,cp);
- return NUMBER_TOKEN;
- } else if((c >= 'A' && c <= 'Z') ||
- (c >= 'a' && c <= 'z') ||
- c == '/' || c == '_' || c == '-' || c == '.') {
- p = keyword_value;
- *p++ = c;
- while(p-keyword_value < MAXKEYWORDLEN) {
- c = FontFileGetc(f);
- if(c <= ' ' || c > '~' || c == '#')
- break;
- *p++ = c;
- }
- *cp = c;
- *p = '\0';
- return KEYWORD_TOKEN;
- } else {
- *cp = c;
- return ERROR_TOKEN;
- }
-}
-
-/* Parse a line.
- * Always skips to the beginning of a new line, even if an error occurs */
-static int
-getnextline(FontFilePtr f)
-{
- int c, token;
- c = FontFileGetc(f);
- if(c <= 0)
- return EOF_LINE;
-
- again:
- token=gettoken(f,c,&c);
-
- switch(token) {
- case EOF_TOKEN:
- return EOF_LINE;
- case EOL_TOKEN:
- /* empty line */
- c = FontFileGetc(f);
- goto again;
- case NUMBER_TOKEN:
- value1 = number_value;
- token = gettoken(f,c,&c);
- switch(token) {
- case NUMBER_TOKEN:
- value2 = number_value;
- token = gettoken(f,c,&c);
- switch(token) {
- case NUMBER_TOKEN:
- value3 = number_value;
- return CODE_RANGE_LINE;
- case EOL_TOKEN:
- return CODE_LINE;
- default:
- skipEndOfLine(f,c);
- return ERROR_LINE;
- }
- case KEYWORD_TOKEN:
- if(!endOfLine(f,c))
- return ERROR_LINE;
- else
- return NAME_LINE;
- default:
- skipEndOfLine(f,c);
- return ERROR_LINE;
- }
- case KEYWORD_TOKEN:
- if(!strcasecmp(keyword_value, "STARTENCODING")) {
- token = gettoken(f,c,&c);
- if(token == KEYWORD_TOKEN) {
- if(endOfLine(f,c))
- return STARTENCODING_LINE;
- else
- return ERROR_LINE;
- } else {
- skipEndOfLine(f,c);
- return ERROR_LINE;
- }
- } else if(!strcasecmp(keyword_value, "ALIAS")) {
- token = gettoken(f,c,&c);
- if(token == KEYWORD_TOKEN) {
- if(endOfLine(f,c))
- return ALIAS_LINE;
- else
- return ERROR_LINE;
- } else {
- skipEndOfLine(f,c);
- return ERROR_LINE;
- }
- } else if(!strcasecmp(keyword_value, "SIZE")) {
- token = gettoken(f,c,&c);
- if(token == NUMBER_TOKEN) {
- value1 = number_value;
- token = gettoken(f,c,&c);
- switch(token) {
- case NUMBER_TOKEN:
- value2 = number_value;
- return SIZE_LINE;
- case EOL_TOKEN:
- value2=0;
- return SIZE_LINE;
- default:
- skipEndOfLine(f,c);
- return ERROR_LINE;
- }
- } else {
- skipEndOfLine(f,c);
- return ERROR_LINE;
- }
- } else if(!strcasecmp(keyword_value, "FIRSTINDEX")) {
- token = gettoken(f,c,&c);
- if(token == NUMBER_TOKEN) {
- value1 = number_value;
- token = gettoken(f,c,&c);
- switch(token) {
- case NUMBER_TOKEN:
- value2 = number_value;
- return FIRSTINDEX_LINE;
- case EOL_TOKEN:
- value2 = 0;
- return FIRSTINDEX_LINE;
- default:
- skipEndOfLine(f,c);
- return ERROR_LINE;
- }
- } else {
- skipEndOfLine(f,c);
- return ERROR_LINE;
- }
- } else if(!strcasecmp(keyword_value, "STARTMAPPING")) {
- keyword_value[0] = 0;
- value1 = 0; value1 = 0;
- /* first a keyword */
- token = gettoken(f,c,&c);
- if(token != KEYWORD_TOKEN) {
- skipEndOfLine(f, c);
- return ERROR_LINE;
- }
-
- /* optional first integer */
- token = gettoken(f,c,&c);
- if(token == NUMBER_TOKEN) {
- value1 = number_value;
- } else if(token == EOL_TOKEN) {
- return STARTMAPPING_LINE;
- } else {
- skipEndOfLine(f, c);
- return ERROR_LINE;
- }
-
- /* optional second integer */
- token = gettoken(f,c,&c);
- if(token == NUMBER_TOKEN) {
- value2 = number_value;
- } else if(token == EOL_TOKEN) {
- return STARTMAPPING_LINE;
- } else {
- skipEndOfLine(f, c);
- return ERROR_LINE;
- }
-
- if(!endOfLine(f,c))
- return ERROR_LINE;
- else {
- return STARTMAPPING_LINE;
- }
- } else if(!strcasecmp(keyword_value, "UNDEFINE")) {
- /* first integer */
- token = gettoken(f,c,&c);
- if(token != NUMBER_TOKEN) {
- skipEndOfLine(f,c);
- return ERROR_LINE;
- }
- value1 = number_value;
- /* optional second integer */
- token = gettoken(f,c,&c);
- if(token == EOL_TOKEN) {
- value2 = value1;
- return CODE_UNDEFINE_LINE;
- } else if(token == NUMBER_TOKEN) {
- value2 = number_value;
- if(endOfLine(f,c)) {
- return CODE_UNDEFINE_LINE;
- } else
- return ERROR_LINE;
- } else {
- skipEndOfLine(f,c);
- return ERROR_LINE;
- }
- } else if(!strcasecmp(keyword_value, "ENDENCODING")) {
- if(endOfLine(f,c))
- return EOF_LINE;
- else
- return ERROR_LINE;
- } else if(!strcasecmp(keyword_value, "ENDMAPPING")) {
- if(endOfLine(f,c))
- return ENDMAPPING_LINE;
- else
- return ERROR_LINE;
- } else {
- skipEndOfLine(f,c);
- return ERROR_LINE;
- }
- default:
- return ERROR_LINE;
- }
-}
-
-static void
-install_mapping(FontEncPtr encoding, FontMapPtr mapping)
-{
- FontMapPtr m;
-
- if(encoding->mappings == NULL)
- encoding->mappings = mapping;
- else {
- m = encoding->mappings;
- while(m->next != NULL)
- m = m->next;
- m->next = mapping;
- }
- mapping->next = NULL;
- mapping->encoding = encoding;
-}
-
-static int
-setCode(unsigned from, unsigned to, unsigned row_size,
- unsigned *first, unsigned *last,
- unsigned *encsize, unsigned short **enc)
-{
- unsigned index, i;
- unsigned short *newenc;
-
- if(from>0xFFFF)
- return 0; /* success */
-
- if(row_size==0)
- index=from;
- else {
- if((value1 & 0xFF) >= row_size)
- return 0; /* ignore out of range mappings */
- index = (from>>8) * row_size + (from&0xFF);
- }
-
- /* Optimize away useless identity mappings. This is only expected
- to be useful with linear encodings. */
- if(index == to && (index < *first || index > *last))
- return 0;
- if(*encsize == 0) {
- *encsize = (index < 256) ? 256 : 0x10000;
- *enc = malloc((*encsize) * sizeof(unsigned short));
- if(*enc == NULL) {
- *encsize = 0;
- return 1;
- }
- } else if(*encsize <= index) {
- *encsize = 0x10000;
- if((newenc = realloc(enc, *encsize))==NULL)
- return 1;
- *enc = newenc;
- }
- if(*first > *last) {
- *first = *last = index;
- }
- if(index < *first) {
- for(i = index; i < *first; i++)
- (*enc)[i] = i;
- *first = index;
- }
- if(index > *last) {
- for(i = *last + 1; i <= index; i++)
- (*enc)[i] = i;
- *last = index;
- }
- (*enc)[index] = to;
- return 0;
-}
-
-/* Parser. If headerOnly is true, we're only interested in the
- data contained in the encoding file's header. */
-
-/* As font encodings are currently never freed, the allocations done
- by this function are mostly its private business. Note, however,
- that FontEncIdentify needs to free the header fields -- so if you
- change this function, you may need to change FontEncIdentify. */
-
-/* I want a garbage collector. */
-
-static FontEncPtr
-parseEncodingFile(FontFilePtr f, int headerOnly)
-{
- int line;
-
- unsigned short *enc=NULL;
- char **nam = NULL, **newnam;
- unsigned i, first = 0xFFFF, last=0, encsize=0, namsize=0;
- FontEncPtr encoding = NULL;
- FontMapPtr mapping = NULL;
- FontEncSimpleMapPtr sm;
- FontEncSimpleNamePtr sn;
- char *aliases[MAXALIASES];
- int numaliases=0;
-
-#if 0
- /* GCC complains about unused labels. Please fix GCC rather than
- obfuscating my code. */
- no_encoding:
-#endif
- line = getnextline(f);
- switch(line) {
- case EOF_LINE:
- goto error;
- case STARTENCODING_LINE:
- encoding = malloc(sizeof(FontEncRec));
- if(encoding == NULL)
- goto error;
- encoding->name = strdup(keyword_value);
- if(encoding->name == NULL)
- goto error;
- encoding->size = 256;
- encoding->row_size = 0;
- encoding->mappings = NULL;
- encoding->next = NULL;
- encoding->first = encoding->first_col=0;
- goto no_mapping;
- default:
- goto error;
- }
-
- no_mapping:
- line = getnextline(f);
- switch(line) {
- case EOF_LINE: goto done;
- case ALIAS_LINE:
- if(numaliases < MAXALIASES) {
- aliases[numaliases] = strdup(keyword_value);
- if(aliases[numaliases] == NULL)
- goto error;
- numaliases++;
- }
- goto no_mapping;
- case SIZE_LINE:
- encoding->size = value1;
- encoding->row_size = value2;
- goto no_mapping;
- case FIRSTINDEX_LINE:
- encoding->first = value1;
- encoding->first_col = value2;
- goto no_mapping;
- case STARTMAPPING_LINE:
- if(headerOnly)
- goto done;
- if(!strcasecmp(keyword_value, "unicode")) {
- mapping = malloc(sizeof(FontMapRec));
- if(mapping == NULL)
- goto error;
- mapping->type = FONT_ENCODING_UNICODE;
- mapping->pid = 0;
- mapping->eid = 0;
- mapping->recode = NULL;
- mapping->name = NULL;
- mapping->client_data = NULL;
- mapping->next = NULL;
- goto mapping;
- } else if(!strcasecmp(keyword_value, "cmap")) {
- mapping = malloc(sizeof(FontMapRec));
- if(mapping == NULL)
- goto error;
- mapping->type = FONT_ENCODING_TRUETYPE;
- mapping->pid = value1;
- mapping->eid = value2;
- mapping->recode = NULL;
- mapping->name = NULL;
- mapping->client_data = NULL;
- mapping->next = NULL;
- goto mapping;
- } else if(!strcasecmp(keyword_value, "postscript")) {
- mapping = malloc(sizeof(FontMapRec));
- if(mapping == NULL)
- goto error;
- mapping->type = FONT_ENCODING_POSTSCRIPT;
- mapping->pid = 0;
- mapping->eid = 0;
- mapping->recode = NULL;
- mapping->name = NULL;
- mapping->client_data = NULL;
- mapping->next = NULL;
- goto string_mapping;
- } else { /* unknown mapping type -- ignore */
- goto skipmapping;
- }
- /* NOTREACHED */
- goto error;
- default: goto no_mapping; /* ignore unknown lines */
- }
-
- skipmapping:
- line = getnextline(f);
- switch(line) {
- case ENDMAPPING_LINE:
- goto no_mapping;
- case EOF_LINE:
- goto error;
- default:
- goto skipmapping;
- }
-
- mapping:
- line = getnextline(f);
- switch(line) {
- case EOF_LINE: goto error;
- case ENDMAPPING_LINE:
- mapping->recode = FontEncSimpleRecode;
- mapping->name = FontEncUndefinedName;
- mapping->client_data = sm = malloc(sizeof(FontEncSimpleMapRec));
- if(sm == NULL)
- goto error;
- sm->row_size = encoding->row_size;
- if(first <= last) {
- unsigned short *newmap;
-
- sm->first = first;
- sm->len=last-first+1;
- newmap = malloc(sm->len * sizeof(unsigned short));
- if(newmap == NULL) {
- free(sm);
- mapping->client_data = sm = NULL;
- goto error;
- }
- for(i=0; i < sm->len; i++)
- newmap[i] = enc[first+i];
- sm->map = newmap;
- } else {
- sm->first = 0;
- sm->len = 0;
- sm->map = NULL;
- }
- install_mapping(encoding, mapping);
- mapping = NULL;
- first = 0xFFFF; last=0;
- goto no_mapping;
-
- case CODE_LINE:
- if(setCode(value1, value2, encoding->row_size,
- &first, &last, &encsize, &enc))
- goto error;
- goto mapping;
-
- case CODE_RANGE_LINE:
- if(value1 > 0x10000)
- value1 = 0x10000;
- if(value2 > 0x10000)
- value2 = 0x10000;
- if(value2 < value1)
- goto mapping;
- /* Do the last value first to avoid having to realloc() */
- if(setCode(value2, value3+(value2-value1), encoding->row_size,
- &first, &last, &encsize, &enc))
- goto error;
- for(i=value1; i<value2; i++) {
- if(setCode(i, value3+(i-value1), encoding->row_size,
- &first, &last, &encsize, &enc))
- goto error;
- }
- goto mapping;
-
- case CODE_UNDEFINE_LINE:
- if(value1 > 0x10000)
- value1 = 0x10000;
- if(value2 > 0x10000)
- value2 = 0x10000;
- if(value2 < value1)
- goto mapping;
- /* Do the last value first to avoid having to realloc() */
- if(setCode(value2, 0, encoding->row_size,
- &first, &last, &encsize, &enc))
- goto error;
- for(i = value1; i < value2; i++) {
- if(setCode(i, 0, encoding->row_size,
- &first, &last, &encsize, &enc))
- goto error;
- }
- goto mapping;
-
- default: goto mapping; /* ignore unknown lines */
- }
-
- string_mapping:
- line = getnextline(f);
- switch(line) {
- case EOF_LINE: goto error;
- case ENDMAPPING_LINE:
- mapping->recode = FontEncUndefinedRecode;
- mapping->name = FontEncSimpleName;
- mapping->client_data = sn = malloc(sizeof(FontEncSimpleNameRec));
- if(sn == NULL)
- goto error;
- if(first > last) {
- free(sn);
- mapping->client_data = sn = NULL;
- goto error;
- }
- sn->first = first;
- sn->len = last - first + 1;
- sn->map = malloc(sn->len*sizeof(char*));
- if(sn->map == NULL) {
- free(sn);
- mapping->client_data = sn = NULL;
- goto error;
- }
- for(i = 0; i < sn->len; i++)
- sn->map[i] = nam[first+i];
- install_mapping(encoding,mapping);
- mapping = NULL;
- first = 0xFFFF; last=0;
- goto no_mapping;
- case NAME_LINE:
- if(value1 >= 0x10000) goto string_mapping;
- if(namsize == 0) {
- namsize = (value1) < 256 ? 256 : 0x10000;
- nam = malloc(namsize * sizeof(char*));
- if(nam == NULL) {
- namsize=0;
- goto error;
- }
- } else if(namsize <= value1) {
- namsize = 0x10000;
- if((newnam = (char**)realloc(nam, namsize)) == NULL)
- goto error;
- nam = newnam;
- }
- if(first > last) {
- first = last = value1;
- }
- if(value1 < first) {
- for(i = value1; i < first; i++)
- nam[i] = NULL;
- first = value1;
- }
- if(value1 > last) {
- for(i=last+1; i <= value1; i++)
- nam[i]=NULL;
- last = value1;
- }
- nam[value1] = strdup(keyword_value);
- if(nam[value1] == NULL) {
- goto error;
- }
- goto string_mapping;
-
- default: goto string_mapping; /* ignore unknown lines */
- }
-
- done:
- if(encsize) free(enc); encsize=0; enc = NULL;
- if(namsize) free(nam); namsize=0; nam = NULL; /* don't free entries! */
-
- encoding->aliases=NULL;
- if(numaliases) {
- encoding->aliases = malloc((numaliases+1)*sizeof(char*));
- if(encoding->aliases == NULL)
- goto error;
- for(i=0; i<numaliases; i++)
- encoding->aliases[i] = aliases[i];
- encoding->aliases[numaliases]=NULL;
- }
-
- return encoding;
-
-error:
- if(encsize) free(enc); encsize=0;
- if(namsize) {
- for(i = first; i <= last; i++)
- free(nam[i]);
- free(nam);
- namsize = 0;
- }
- if(mapping) {
- free(mapping->client_data);
- free(mapping);
- }
- if(encoding) {
- FontMapPtr nextmap;
- free(encoding->name);
- for (mapping = encoding->mappings; mapping; mapping = nextmap) {
- free(mapping->client_data);
- nextmap = mapping->next;
- free(mapping);
- }
- free(encoding);
- }
- for(i = 0; i < numaliases; i++)
- free(aliases[i]);
- /* We don't need to free sn and sm as they handled locally in the body.*/
- return NULL;
-}
-
-char*
-FontEncDirectory(void)
-{
- static char* dir = NULL;
-
- if(dir == NULL) {
- char *c = getenv("FONT_ENCODINGS_DIRECTORY");
- if(c) {
- dir = strdup(c);
- if(!dir)
- return NULL;
- } else {
- dir = FONT_ENCODINGS_DIRECTORY;
- }
- }
- return dir;
-}
-
-static void
-parseFontFileName(const char *fontFileName, char *buf, char *dir)
-{
- const char *p;
- char *q, *lastslash;
-
- for(p = fontFileName, q = dir, lastslash = NULL; *p; p++, q++) {
- *q = *p;
- if(*p == '/')
- lastslash = q+1;
- }
-
- if(!lastslash)
- lastslash = dir;
-
- *lastslash = '\0';
-
- if(buf && strlen(dir) + 14 < MAXFONTFILENAMELEN) {
- strcpy(buf, dir);
- strcat(buf, "encodings.dir");
- }
-}
-
-static FontEncPtr
-FontEncReallyReallyLoad(const char *charset,
- const char *dirname, const char *dir)
-{
- FontFilePtr f;
- FILE *file;
- FontEncPtr encoding;
- char file_name[MAXFONTFILENAMELEN], encoding_name[MAXFONTNAMELEN],
- buf[MAXFONTFILENAMELEN];
- int count, n;
- static char format[24] = "";
-
- /* As we don't really expect to open encodings that often, we don't
- take the trouble of caching encodings directories. */
-
- if((file = fopen(dirname, "r")) == NULL) {
- return NULL;
- }
-
- count = fscanf(file, "%d\n", &n);
- if(count == EOF || count != 1) {
- fclose(file);
- return NULL;
- }
-
- encoding = NULL;
- if (!format[0]) {
- sprintf(format, "%%%ds %%%d[^\n]\n", (int)sizeof(encoding_name) - 1,
- (int)sizeof(file_name) - 1);
- }
- for(;;) {
- count = fscanf(file, format, encoding_name, file_name);
- if(count == EOF)
- break;
- if(count != 2)
- break;
-
- if(!strcasecmp(encoding_name, charset)) {
- /* Found it */
- if(file_name[0] != '/') {
- if(strlen(dir) + strlen(file_name) >= MAXFONTFILENAMELEN) {
- fclose(file);
- return NULL;
- }
- strcpy(buf, dir);
- strcat(buf, file_name);
- } else {
- strcpy(buf , file_name);
- }
-
- f = FontFileOpen(buf);
- if(f == NULL) {
- fclose(file);
- return NULL;
- }
- encoding = parseEncodingFile(f, 0);
- FontFileClose(f);
- break;
- }
- }
-
- fclose(file);
-
- return encoding;
-}
-
-/* Parser ntrypoint -- used by FontEncLoad */
-FontEncPtr
-FontEncReallyLoad(const char *charset, const char *fontFileName)
-{
- FontEncPtr encoding;
- char dir[MAXFONTFILENAMELEN], dirname[MAXFONTFILENAMELEN];
- char *d;
-
- if(fontFileName) {
- parseFontFileName(fontFileName, dirname, dir);
- encoding = FontEncReallyReallyLoad(charset, dirname, dir);
- if(encoding)
- return(encoding);
- }
-
- d = FontEncDirectory();
- if(d) {
- parseFontFileName(d, NULL, dir);
- encoding = FontEncReallyReallyLoad(charset, d, dir);
- return encoding;
- }
-
- return NULL;
-}
-
-/* Return a NULL-terminated array of encoding names. Note that this
- * function has incestuous knowledge of the allocations done by
- * parseEncodingFile. */
-
-char **
-FontEncIdentify(const char *fileName)
-{
- FontFilePtr f;
- FontEncPtr encoding;
- char **names, **name, **alias;
- int numaliases;
-
- if((f = FontFileOpen(fileName))==NULL) {
- return NULL;
- }
- encoding = parseEncodingFile(f, 1);
- FontFileClose(f);
-
- if(!encoding)
- return NULL;
-
- numaliases = 0;
- if(encoding->aliases)
- for(alias = encoding->aliases; *alias; alias++)
- numaliases++;
-
- names = malloc((numaliases+2)*sizeof(char*));
- if(names == NULL) {
- free(encoding->aliases);
- free(encoding);
- return NULL;
- }
-
- name = names;
- *(name++) = encoding->name;
- if(numaliases > 0)
- for(alias = encoding->aliases; *alias; alias++, name++)
- *name = *alias;
-
- *name = NULL;
- free(encoding->aliases);
- free(encoding);
-
- return names;
-}
+/*
+Copyright (c) 1998-2001 by Juliusz Chroboczek
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+/* Parser for encoding files */
+
+/* This code assumes that we are using ASCII. We don't use the ctype
+ functions, as they depend on the current locale. On the other
+ hand, we do use strcasecmp, but only on strings that we've checked
+ to be pure ASCII. Bloody ``Code Set Independence''. */
+
+#include <string.h>
+#include <stdio.h>
+
+#if defined(__SCO__) || defined(__UNIXWARE__)
+#include <strings.h>
+#endif
+
+#include <stdlib.h>
+
+#include "zlib.h"
+typedef gzFile FontFilePtr;
+#define FontFileGetc(f) gzgetc(f)
+#define FontFileOpen(filename) gzopen(filename, "rb")
+#define FontFileClose(f) gzclose(f)
+
+#define MAXFONTFILENAMELEN 1024
+#define MAXFONTNAMELEN 1024
+
+#include <X11/fonts/fontenc.h>
+#include "fontencI.h"
+
+#define MAXALIASES 20
+
+#define EOF_TOKEN -1
+#define ERROR_TOKEN -2
+#define EOL_TOKEN 0
+#define NUMBER_TOKEN 1
+#define KEYWORD_TOKEN 2
+
+#define EOF_LINE -1
+#define ERROR_LINE -2
+#define STARTENCODING_LINE 1
+#define STARTMAPPING_LINE 2
+#define ENDMAPPING_LINE 3
+#define CODE_LINE 4
+#define CODE_RANGE_LINE 5
+#define CODE_UNDEFINE_LINE 6
+#define NAME_LINE 7
+#define SIZE_LINE 8
+#define ALIAS_LINE 9
+#define FIRSTINDEX_LINE 10
+
+/* Return from lexer */
+#define MAXKEYWORDLEN 100
+
+static long number_value;
+static char keyword_value[MAXKEYWORDLEN+1];
+
+static long value1, value2, value3;
+
+/* Lexer code */
+
+/* Skip to the beginning of new line */
+static void
+skipEndOfLine(FontFilePtr f, int c)
+{
+ if(c == 0)
+ c = FontFileGetc(f);
+
+ for(;;)
+ if(c <= 0 || c == '\n')
+ return;
+ else
+ c = FontFileGetc(f);
+}
+
+/* Get a number; we're at the first digit. */
+static unsigned
+getnum(FontFilePtr f, int c, int *cp)
+{
+ unsigned n = 0;
+ int base = 10;
+
+ /* look for `0' or `0x' prefix */
+ if(c == '0') {
+ c = FontFileGetc(f);
+ base = 8;
+ if(c == 'x' || c == 'X') {
+ base = 16;
+ c = FontFileGetc(f);
+ }
+ }
+
+ /* accumulate digits */
+ for(;;) {
+ if ('0' <= c && c <= '9') {
+ n *= base; n += c - '0';
+ } else if('a' <= c && c <= 'f') {
+ n *= base; n += c - 'a' + 10;
+ } else if('A' <=c && c <= 'F') {
+ n *= base; n += c - 'A' + 10;
+ } else
+ break;
+ c = FontFileGetc(f);
+ }
+
+ *cp = c; return n;
+}
+
+/* Skip to beginning of new line; return 1 if only whitespace was found. */
+static int
+endOfLine(FontFilePtr f, int c)
+{
+ if(c == 0)
+ c = FontFileGetc(f);
+
+ for(;;) {
+ if(c <= 0 || c == '\n')
+ return 1;
+ else if(c == '#') {
+ skipEndOfLine(f,c);
+ return 1;
+ }
+ else if(c == ' ' || c == '\t') {
+ skipEndOfLine(f,c);
+ return 0;
+ }
+ c = FontFileGetc(f);
+ }
+}
+
+/* Get a token; we're at first char */
+static int
+gettoken(FontFilePtr f, int c, int *cp)
+{
+ char *p;
+
+ if(c <= 0)
+ c = FontFileGetc(f);
+
+ if(c <= 0) {
+ return EOF_TOKEN;
+ }
+
+ while(c == ' ' || c == '\t')
+ c = FontFileGetc(f);
+
+ if(c=='\n') {
+ return EOL_TOKEN;
+ } else if(c == '#') {
+ skipEndOfLine(f,c);
+ return EOL_TOKEN;
+ } else if(c >= '0' && c <= '9') {
+ number_value = getnum(f,c,cp);
+ return NUMBER_TOKEN;
+ } else if((c >= 'A' && c <= 'Z') ||
+ (c >= 'a' && c <= 'z') ||
+ c == '/' || c == '_' || c == '-' || c == '.') {
+ p = keyword_value;
+ *p++ = c;
+ while(p-keyword_value < MAXKEYWORDLEN) {
+ c = FontFileGetc(f);
+ if(c <= ' ' || c > '~' || c == '#')
+ break;
+ *p++ = c;
+ }
+ *cp = c;
+ *p = '\0';
+ return KEYWORD_TOKEN;
+ } else {
+ *cp = c;
+ return ERROR_TOKEN;
+ }
+}
+
+/* Parse a line.
+ * Always skips to the beginning of a new line, even if an error occurs */
+static int
+getnextline(FontFilePtr f)
+{
+ int c, token;
+ c = FontFileGetc(f);
+ if(c <= 0)
+ return EOF_LINE;
+
+ again:
+ token=gettoken(f,c,&c);
+
+ switch(token) {
+ case EOF_TOKEN:
+ return EOF_LINE;
+ case EOL_TOKEN:
+ /* empty line */
+ c = FontFileGetc(f);
+ goto again;
+ case NUMBER_TOKEN:
+ value1 = number_value;
+ token = gettoken(f,c,&c);
+ switch(token) {
+ case NUMBER_TOKEN:
+ value2 = number_value;
+ token = gettoken(f,c,&c);
+ switch(token) {
+ case NUMBER_TOKEN:
+ value3 = number_value;
+ return CODE_RANGE_LINE;
+ case EOL_TOKEN:
+ return CODE_LINE;
+ default:
+ skipEndOfLine(f,c);
+ return ERROR_LINE;
+ }
+ case KEYWORD_TOKEN:
+ if(!endOfLine(f,c))
+ return ERROR_LINE;
+ else
+ return NAME_LINE;
+ default:
+ skipEndOfLine(f,c);
+ return ERROR_LINE;
+ }
+ case KEYWORD_TOKEN:
+ if(!strcasecmp(keyword_value, "STARTENCODING")) {
+ token = gettoken(f,c,&c);
+ if(token == KEYWORD_TOKEN) {
+ if(endOfLine(f,c))
+ return STARTENCODING_LINE;
+ else
+ return ERROR_LINE;
+ } else {
+ skipEndOfLine(f,c);
+ return ERROR_LINE;
+ }
+ } else if(!strcasecmp(keyword_value, "ALIAS")) {
+ token = gettoken(f,c,&c);
+ if(token == KEYWORD_TOKEN) {
+ if(endOfLine(f,c))
+ return ALIAS_LINE;
+ else
+ return ERROR_LINE;
+ } else {
+ skipEndOfLine(f,c);
+ return ERROR_LINE;
+ }
+ } else if(!strcasecmp(keyword_value, "SIZE")) {
+ token = gettoken(f,c,&c);
+ if(token == NUMBER_TOKEN) {
+ value1 = number_value;
+ token = gettoken(f,c,&c);
+ switch(token) {
+ case NUMBER_TOKEN:
+ value2 = number_value;
+ return SIZE_LINE;
+ case EOL_TOKEN:
+ value2=0;
+ return SIZE_LINE;
+ default:
+ skipEndOfLine(f,c);
+ return ERROR_LINE;
+ }
+ } else {
+ skipEndOfLine(f,c);
+ return ERROR_LINE;
+ }
+ } else if(!strcasecmp(keyword_value, "FIRSTINDEX")) {
+ token = gettoken(f,c,&c);
+ if(token == NUMBER_TOKEN) {
+ value1 = number_value;
+ token = gettoken(f,c,&c);
+ switch(token) {
+ case NUMBER_TOKEN:
+ value2 = number_value;
+ return FIRSTINDEX_LINE;
+ case EOL_TOKEN:
+ value2 = 0;
+ return FIRSTINDEX_LINE;
+ default:
+ skipEndOfLine(f,c);
+ return ERROR_LINE;
+ }
+ } else {
+ skipEndOfLine(f,c);
+ return ERROR_LINE;
+ }
+ } else if(!strcasecmp(keyword_value, "STARTMAPPING")) {
+ keyword_value[0] = 0;
+ value1 = 0; value1 = 0;
+ /* first a keyword */
+ token = gettoken(f,c,&c);
+ if(token != KEYWORD_TOKEN) {
+ skipEndOfLine(f, c);
+ return ERROR_LINE;
+ }
+
+ /* optional first integer */
+ token = gettoken(f,c,&c);
+ if(token == NUMBER_TOKEN) {
+ value1 = number_value;
+ } else if(token == EOL_TOKEN) {
+ return STARTMAPPING_LINE;
+ } else {
+ skipEndOfLine(f, c);
+ return ERROR_LINE;
+ }
+
+ /* optional second integer */
+ token = gettoken(f,c,&c);
+ if(token == NUMBER_TOKEN) {
+ value2 = number_value;
+ } else if(token == EOL_TOKEN) {
+ return STARTMAPPING_LINE;
+ } else {
+ skipEndOfLine(f, c);
+ return ERROR_LINE;
+ }
+
+ if(!endOfLine(f,c))
+ return ERROR_LINE;
+ else {
+ return STARTMAPPING_LINE;
+ }
+ } else if(!strcasecmp(keyword_value, "UNDEFINE")) {
+ /* first integer */
+ token = gettoken(f,c,&c);
+ if(token != NUMBER_TOKEN) {
+ skipEndOfLine(f,c);
+ return ERROR_LINE;
+ }
+ value1 = number_value;
+ /* optional second integer */
+ token = gettoken(f,c,&c);
+ if(token == EOL_TOKEN) {
+ value2 = value1;
+ return CODE_UNDEFINE_LINE;
+ } else if(token == NUMBER_TOKEN) {
+ value2 = number_value;
+ if(endOfLine(f,c)) {
+ return CODE_UNDEFINE_LINE;
+ } else
+ return ERROR_LINE;
+ } else {
+ skipEndOfLine(f,c);
+ return ERROR_LINE;
+ }
+ } else if(!strcasecmp(keyword_value, "ENDENCODING")) {
+ if(endOfLine(f,c))
+ return EOF_LINE;
+ else
+ return ERROR_LINE;
+ } else if(!strcasecmp(keyword_value, "ENDMAPPING")) {
+ if(endOfLine(f,c))
+ return ENDMAPPING_LINE;
+ else
+ return ERROR_LINE;
+ } else {
+ skipEndOfLine(f,c);
+ return ERROR_LINE;
+ }
+ default:
+ return ERROR_LINE;
+ }
+}
+
+static void
+install_mapping(FontEncPtr encoding, FontMapPtr mapping)
+{
+ FontMapPtr m;
+
+ if(encoding->mappings == NULL)
+ encoding->mappings = mapping;
+ else {
+ m = encoding->mappings;
+ while(m->next != NULL)
+ m = m->next;
+ m->next = mapping;
+ }
+ mapping->next = NULL;
+ mapping->encoding = encoding;
+}
+
+static int
+setCode(unsigned from, unsigned to, unsigned row_size,
+ unsigned *first, unsigned *last,
+ unsigned *encsize, unsigned short **enc)
+{
+ unsigned index, i;
+ unsigned short *newenc;
+
+ if(from>0xFFFF)
+ return 0; /* success */
+
+ if(row_size==0)
+ index=from;
+ else {
+ if((value1 & 0xFF) >= row_size)
+ return 0; /* ignore out of range mappings */
+ index = (from>>8) * row_size + (from&0xFF);
+ }
+
+ /* Optimize away useless identity mappings. This is only expected
+ to be useful with linear encodings. */
+ if(index == to && (index < *first || index > *last))
+ return 0;
+ if(*encsize == 0) {
+ *encsize = (index < 256) ? 256 : 0x10000;
+ *enc = malloc((*encsize) * sizeof(unsigned short));
+ if(*enc == NULL) {
+ *encsize = 0;
+ return 1;
+ }
+ } else if(*encsize <= index) {
+ *encsize = 0x10000;
+ if((newenc = realloc(enc, *encsize))==NULL)
+ return 1;
+ *enc = newenc;
+ }
+ if(*first > *last) {
+ *first = *last = index;
+ }
+ if(index < *first) {
+ for(i = index; i < *first; i++)
+ (*enc)[i] = i;
+ *first = index;
+ }
+ if(index > *last) {
+ for(i = *last + 1; i <= index; i++)
+ (*enc)[i] = i;
+ *last = index;
+ }
+ (*enc)[index] = to;
+ return 0;
+}
+
+/* Parser. If headerOnly is true, we're only interested in the
+ data contained in the encoding file's header. */
+
+/* As font encodings are currently never freed, the allocations done
+ by this function are mostly its private business. Note, however,
+ that FontEncIdentify needs to free the header fields -- so if you
+ change this function, you may need to change FontEncIdentify. */
+
+/* I want a garbage collector. */
+
+static FontEncPtr
+parseEncodingFile(FontFilePtr f, int headerOnly)
+{
+ int line;
+
+ unsigned short *enc=NULL;
+ char **nam = NULL, **newnam;
+ unsigned i, first = 0xFFFF, last=0, encsize=0, namsize=0;
+ FontEncPtr encoding = NULL;
+ FontMapPtr mapping = NULL;
+ FontEncSimpleMapPtr sm;
+ FontEncSimpleNamePtr sn;
+ char *aliases[MAXALIASES];
+ int numaliases=0;
+
+#if 0
+ /* GCC complains about unused labels. Please fix GCC rather than
+ obfuscating my code. */
+ no_encoding:
+#endif
+ line = getnextline(f);
+ switch(line) {
+ case EOF_LINE:
+ goto error;
+ case STARTENCODING_LINE:
+ encoding = malloc(sizeof(FontEncRec));
+ if(encoding == NULL)
+ goto error;
+ encoding->name = strdup(keyword_value);
+ if(encoding->name == NULL)
+ goto error;
+ encoding->size = 256;
+ encoding->row_size = 0;
+ encoding->mappings = NULL;
+ encoding->next = NULL;
+ encoding->first = encoding->first_col=0;
+ goto no_mapping;
+ default:
+ goto error;
+ }
+
+ no_mapping:
+ line = getnextline(f);
+ switch(line) {
+ case EOF_LINE: goto done;
+ case ALIAS_LINE:
+ if(numaliases < MAXALIASES) {
+ aliases[numaliases] = strdup(keyword_value);
+ if(aliases[numaliases] == NULL)
+ goto error;
+ numaliases++;
+ }
+ goto no_mapping;
+ case SIZE_LINE:
+ encoding->size = value1;
+ encoding->row_size = value2;
+ goto no_mapping;
+ case FIRSTINDEX_LINE:
+ encoding->first = value1;
+ encoding->first_col = value2;
+ goto no_mapping;
+ case STARTMAPPING_LINE:
+ if(headerOnly)
+ goto done;
+ if(!strcasecmp(keyword_value, "unicode")) {
+ mapping = malloc(sizeof(FontMapRec));
+ if(mapping == NULL)
+ goto error;
+ mapping->type = FONT_ENCODING_UNICODE;
+ mapping->pid = 0;
+ mapping->eid = 0;
+ mapping->recode = NULL;
+ mapping->name = NULL;
+ mapping->client_data = NULL;
+ mapping->next = NULL;
+ goto mapping;
+ } else if(!strcasecmp(keyword_value, "cmap")) {
+ mapping = malloc(sizeof(FontMapRec));
+ if(mapping == NULL)
+ goto error;
+ mapping->type = FONT_ENCODING_TRUETYPE;
+ mapping->pid = value1;
+ mapping->eid = value2;
+ mapping->recode = NULL;
+ mapping->name = NULL;
+ mapping->client_data = NULL;
+ mapping->next = NULL;
+ goto mapping;
+ } else if(!strcasecmp(keyword_value, "postscript")) {
+ mapping = malloc(sizeof(FontMapRec));
+ if(mapping == NULL)
+ goto error;
+ mapping->type = FONT_ENCODING_POSTSCRIPT;
+ mapping->pid = 0;
+ mapping->eid = 0;
+ mapping->recode = NULL;
+ mapping->name = NULL;
+ mapping->client_data = NULL;
+ mapping->next = NULL;
+ goto string_mapping;
+ } else { /* unknown mapping type -- ignore */
+ goto skipmapping;
+ }
+ /* NOTREACHED */
+ goto error;
+ default: goto no_mapping; /* ignore unknown lines */
+ }
+
+ skipmapping:
+ line = getnextline(f);
+ switch(line) {
+ case ENDMAPPING_LINE:
+ goto no_mapping;
+ case EOF_LINE:
+ goto error;
+ default:
+ goto skipmapping;
+ }
+
+ mapping:
+ line = getnextline(f);
+ switch(line) {
+ case EOF_LINE: goto error;
+ case ENDMAPPING_LINE:
+ mapping->recode = FontEncSimpleRecode;
+ mapping->name = FontEncUndefinedName;
+ mapping->client_data = sm = malloc(sizeof(FontEncSimpleMapRec));
+ if(sm == NULL)
+ goto error;
+ sm->row_size = encoding->row_size;
+ if(first <= last) {
+ unsigned short *newmap;
+
+ sm->first = first;
+ sm->len=last-first+1;
+ newmap = malloc(sm->len * sizeof(unsigned short));
+ if(newmap == NULL) {
+ free(sm);
+ mapping->client_data = sm = NULL;
+ goto error;
+ }
+ for(i=0; i < sm->len; i++)
+ newmap[i] = enc[first+i];
+ sm->map = newmap;
+ } else {
+ sm->first = 0;
+ sm->len = 0;
+ sm->map = NULL;
+ }
+ install_mapping(encoding, mapping);
+ mapping = NULL;
+ first = 0xFFFF; last=0;
+ goto no_mapping;
+
+ case CODE_LINE:
+ if(setCode(value1, value2, encoding->row_size,
+ &first, &last, &encsize, &enc))
+ goto error;
+ goto mapping;
+
+ case CODE_RANGE_LINE:
+ if(value1 > 0x10000)
+ value1 = 0x10000;
+ if(value2 > 0x10000)
+ value2 = 0x10000;
+ if(value2 < value1)
+ goto mapping;
+ /* Do the last value first to avoid having to realloc() */
+ if(setCode(value2, value3+(value2-value1), encoding->row_size,
+ &first, &last, &encsize, &enc))
+ goto error;
+ for(i=value1; i<value2; i++) {
+ if(setCode(i, value3+(i-value1), encoding->row_size,
+ &first, &last, &encsize, &enc))
+ goto error;
+ }
+ goto mapping;
+
+ case CODE_UNDEFINE_LINE:
+ if(value1 > 0x10000)
+ value1 = 0x10000;
+ if(value2 > 0x10000)
+ value2 = 0x10000;
+ if(value2 < value1)
+ goto mapping;
+ /* Do the last value first to avoid having to realloc() */
+ if(setCode(value2, 0, encoding->row_size,
+ &first, &last, &encsize, &enc))
+ goto error;
+ for(i = value1; i < value2; i++) {
+ if(setCode(i, 0, encoding->row_size,
+ &first, &last, &encsize, &enc))
+ goto error;
+ }
+ goto mapping;
+
+ default: goto mapping; /* ignore unknown lines */
+ }
+
+ string_mapping:
+ line = getnextline(f);
+ switch(line) {
+ case EOF_LINE: goto error;
+ case ENDMAPPING_LINE:
+ mapping->recode = FontEncUndefinedRecode;
+ mapping->name = FontEncSimpleName;
+ mapping->client_data = sn = malloc(sizeof(FontEncSimpleNameRec));
+ if(sn == NULL)
+ goto error;
+ if(first > last) {
+ free(sn);
+ mapping->client_data = sn = NULL;
+ goto error;
+ }
+ sn->first = first;
+ sn->len = last - first + 1;
+ sn->map = malloc(sn->len*sizeof(char*));
+ if(sn->map == NULL) {
+ free(sn);
+ mapping->client_data = sn = NULL;
+ goto error;
+ }
+ for(i = 0; i < sn->len; i++)
+ sn->map[i] = nam[first+i];
+ install_mapping(encoding,mapping);
+ mapping = NULL;
+ first = 0xFFFF; last=0;
+ goto no_mapping;
+ case NAME_LINE:
+ if(value1 >= 0x10000) goto string_mapping;
+ if(namsize == 0) {
+ namsize = (value1) < 256 ? 256 : 0x10000;
+ nam = malloc(namsize * sizeof(char*));
+ if(nam == NULL) {
+ namsize=0;
+ goto error;
+ }
+ } else if(namsize <= value1) {
+ namsize = 0x10000;
+ if((newnam = (char**)realloc(nam, namsize)) == NULL)
+ goto error;
+ nam = newnam;
+ }
+ if(first > last) {
+ first = last = value1;
+ }
+ if(value1 < first) {
+ for(i = value1; i < first; i++)
+ nam[i] = NULL;
+ first = value1;
+ }
+ if(value1 > last) {
+ for(i=last+1; i <= value1; i++)
+ nam[i]=NULL;
+ last = value1;
+ }
+ nam[value1] = strdup(keyword_value);
+ if(nam[value1] == NULL) {
+ goto error;
+ }
+ goto string_mapping;
+
+ default: goto string_mapping; /* ignore unknown lines */
+ }
+
+ done:
+ if(encsize) free(enc); encsize=0; enc = NULL;
+ if(namsize) free(nam); namsize=0; nam = NULL; /* don't free entries! */
+
+ encoding->aliases=NULL;
+ if(numaliases) {
+ encoding->aliases = malloc((numaliases+1)*sizeof(char*));
+ if(encoding->aliases == NULL)
+ goto error;
+ for(i=0; i<numaliases; i++)
+ encoding->aliases[i] = aliases[i];
+ encoding->aliases[numaliases]=NULL;
+ }
+
+ return encoding;
+
+error:
+ if(encsize) free(enc); encsize=0;
+ if(namsize) {
+ for(i = first; i <= last; i++)
+ free(nam[i]);
+ free(nam);
+ }
+ if(mapping) {
+ free(mapping->client_data);
+ free(mapping);
+ }
+ if(encoding) {
+ FontMapPtr nextmap;
+ free(encoding->name);
+ for (mapping = encoding->mappings; mapping; mapping = nextmap) {
+ free(mapping->client_data);
+ nextmap = mapping->next;
+ free(mapping);
+ }
+ free(encoding);
+ }
+ for(i = 0; i < numaliases; i++)
+ free(aliases[i]);
+ /* We don't need to free sn and sm as they handled locally in the body.*/
+ return NULL;
+}
+
+char*
+FontEncDirectory(void)
+{
+ static char* dir = NULL;
+
+ if(dir == NULL) {
+ char *c = getenv("FONT_ENCODINGS_DIRECTORY");
+ if(c) {
+ dir = strdup(c);
+ if(!dir)
+ return NULL;
+ } else {
+ dir = FONT_ENCODINGS_DIRECTORY;
+ }
+ }
+ return dir;
+}
+
+static void
+parseFontFileName(const char *fontFileName, char *buf, char *dir)
+{
+ const char *p;
+ char *q, *lastslash;
+
+ for(p = fontFileName, q = dir, lastslash = NULL; *p; p++, q++) {
+ *q = *p;
+ if(*p == '/')
+ lastslash = q+1;
+ }
+
+ if(!lastslash)
+ lastslash = dir;
+
+ *lastslash = '\0';
+
+ if(buf && strlen(dir) + 14 < MAXFONTFILENAMELEN) {
+ strcpy(buf, dir);
+ strcat(buf, "encodings.dir");
+ }
+}
+
+static FontEncPtr
+FontEncReallyReallyLoad(const char *charset,
+ const char *dirname, const char *dir)
+{
+ FontFilePtr f;
+ FILE *file;
+ FontEncPtr encoding;
+ char file_name[MAXFONTFILENAMELEN], encoding_name[MAXFONTNAMELEN],
+ buf[MAXFONTFILENAMELEN];
+ int count, n;
+ static char format[24] = "";
+
+ /* As we don't really expect to open encodings that often, we don't
+ take the trouble of caching encodings directories. */
+
+ if((file = fopen(dirname, "r")) == NULL) {
+ return NULL;
+ }
+
+ count = fscanf(file, "%d\n", &n);
+ if(count == EOF || count != 1) {
+ fclose(file);
+ return NULL;
+ }
+
+ encoding = NULL;
+ if (!format[0]) {
+ sprintf(format, "%%%ds %%%d[^\n]\n", (int)sizeof(encoding_name) - 1,
+ (int)sizeof(file_name) - 1);
+ }
+ for(;;) {
+ count = fscanf(file, format, encoding_name, file_name);
+ if(count == EOF)
+ break;
+ if(count != 2)
+ break;
+
+ if(!strcasecmp(encoding_name, charset)) {
+ /* Found it */
+ if(file_name[0] != '/') {
+ if(strlen(dir) + strlen(file_name) >= MAXFONTFILENAMELEN) {
+ fclose(file);
+ return NULL;
+ }
+ strcpy(buf, dir);
+ strcat(buf, file_name);
+ } else {
+ strcpy(buf , file_name);
+ }
+
+ f = FontFileOpen(buf);
+ if(f == NULL) {
+ fclose(file);
+ return NULL;
+ }
+ encoding = parseEncodingFile(f, 0);
+ FontFileClose(f);
+ break;
+ }
+ }
+
+ fclose(file);
+
+ return encoding;
+}
+
+/* Parser ntrypoint -- used by FontEncLoad */
+FontEncPtr
+FontEncReallyLoad(const char *charset, const char *fontFileName)
+{
+ FontEncPtr encoding;
+ char dir[MAXFONTFILENAMELEN], dirname[MAXFONTFILENAMELEN];
+ char *d;
+
+ if(fontFileName) {
+ parseFontFileName(fontFileName, dirname, dir);
+ encoding = FontEncReallyReallyLoad(charset, dirname, dir);
+ if(encoding)
+ return(encoding);
+ }
+
+ d = FontEncDirectory();
+ if(d) {
+ parseFontFileName(d, NULL, dir);
+ encoding = FontEncReallyReallyLoad(charset, d, dir);
+ return encoding;
+ }
+
+ return NULL;
+}
+
+/* Return a NULL-terminated array of encoding names. Note that this
+ * function has incestuous knowledge of the allocations done by
+ * parseEncodingFile. */
+
+char **
+FontEncIdentify(const char *fileName)
+{
+ FontFilePtr f;
+ FontEncPtr encoding;
+ char **names, **name, **alias;
+ int numaliases;
+
+ if((f = FontFileOpen(fileName))==NULL) {
+ return NULL;
+ }
+ encoding = parseEncodingFile(f, 1);
+ FontFileClose(f);
+
+ if(!encoding)
+ return NULL;
+
+ numaliases = 0;
+ if(encoding->aliases)
+ for(alias = encoding->aliases; *alias; alias++)
+ numaliases++;
+
+ names = malloc((numaliases+2)*sizeof(char*));
+ if(names == NULL) {
+ free(encoding->aliases);
+ free(encoding);
+ return NULL;
+ }
+
+ name = names;
+ *(name++) = encoding->name;
+ if(numaliases > 0)
+ for(alias = encoding->aliases; *alias; alias++, name++)
+ *name = *alias;
+
+ *name = NULL;
+ free(encoding->aliases);
+ free(encoding);
+
+ return names;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 01:38:48 +0000