From 13a06349251874bd35d2f03c3fc93217cee749a2 Mon Sep 17 00:00:00 2001 From: Nickolay V. Shmyrev Date: Mon, 08 Jan 2007 12:25:31 +0000 Subject: Reorganize source tree. 2007-01-08 Nickolay V. Shmyrev * Makefile.am: * backend/Makefile.am: * backend/comics/Makefile.am: * backend/djvu/Makefile.am: * backend/dvi/Makefile.am: * backend/ev-async-renderer.c: * backend/ev-async-renderer.h: * backend/ev-attachment.c: * backend/ev-attachment.h: * backend/ev-backend-marshal.c: * backend/ev-document-factory.c: * backend/ev-document-factory.h: * backend/ev-document-find.c: * backend/ev-document-find.h: * backend/ev-document-fonts.c: * backend/ev-document-fonts.h: * backend/ev-document-images.c: * backend/ev-document-images.h: * backend/ev-document-info.h: * backend/ev-document-links.c: * backend/ev-document-links.h: * backend/ev-document-misc.c: * backend/ev-document-misc.h: * backend/ev-document-security.c: * backend/ev-document-security.h: * backend/ev-document-thumbnails.c: * backend/ev-document-thumbnails.h: * backend/ev-document-transition.c: * backend/ev-document-transition.h: * backend/ev-document.c: * backend/ev-document.h: * backend/ev-file-exporter.c: * backend/ev-file-exporter.h: * backend/ev-image.c: * backend/ev-image.h: * backend/ev-link-action.c: * backend/ev-link-action.h: * backend/ev-link-dest.c: * backend/ev-link-dest.h: * backend/ev-link.c: * backend/ev-link.h: * backend/ev-render-context.c: * backend/ev-render-context.h: * backend/ev-selection.c: * backend/ev-selection.h: * backend/impress/Makefile.am: * backend/pdf/Makefile.am: * backend/pixbuf/Makefile.am: * backend/ps/Makefile.am: * backend/ps/ps-document.c: (push_pixbuf), (interpreter_failed), (ps_document_widget_event), (setup_pixmap), (setup_page), (input), (start_interpreter), (stop_interpreter), (document_load), (ps_document_next_page), (render_page): * backend/tiff/Makefile.am: * comics/Makefile.am: * comics/comics-document.c: * comics/comics-document.h: * configure.ac: * cut-n-paste/zoom-control/ephy-zoom-control.c: * djvu/Makefile.am: * djvu/djvu-document-private.h: * djvu/djvu-document.c: * djvu/djvu-document.h: * djvu/djvu-links.c: * djvu/djvu-links.h: * djvu/djvu-text-page.c: * djvu/djvu-text-page.h: * djvu/djvu-text.c: * djvu/djvu-text.h: * dvi/Makefile.am: * dvi/dvi-document.c: * dvi/dvi-document.h: * dvi/fonts.c: * dvi/fonts.h: * dvi/mdvi-lib/Makefile.am: * dvi/mdvi-lib/afmparse.c: * dvi/mdvi-lib/afmparse.h: * dvi/mdvi-lib/bitmap.c: * dvi/mdvi-lib/bitmap.h: * dvi/mdvi-lib/color.c: * dvi/mdvi-lib/color.h: * dvi/mdvi-lib/common.c: * dvi/mdvi-lib/common.h: * dvi/mdvi-lib/defaults.h: * dvi/mdvi-lib/dvimisc.c: * dvi/mdvi-lib/dviopcodes.h: * dvi/mdvi-lib/dviread.c: * dvi/mdvi-lib/files.c: * dvi/mdvi-lib/font.c: * dvi/mdvi-lib/fontmap.c: * dvi/mdvi-lib/fontmap.h: * dvi/mdvi-lib/fontsrch.c: * dvi/mdvi-lib/gf.c: * dvi/mdvi-lib/hash.c: * dvi/mdvi-lib/hash.h: * dvi/mdvi-lib/list.c: * dvi/mdvi-lib/mdvi.h: * dvi/mdvi-lib/pagesel.c: * dvi/mdvi-lib/paper.c: * dvi/mdvi-lib/paper.h: * dvi/mdvi-lib/pk.c: * dvi/mdvi-lib/private.h: * dvi/mdvi-lib/setup.c: * dvi/mdvi-lib/sp-epsf.c: * dvi/mdvi-lib/special.c: * dvi/mdvi-lib/sysdeps.h: * dvi/mdvi-lib/t1.c: * dvi/mdvi-lib/tfm.c: * dvi/mdvi-lib/tfmfile.c: * dvi/mdvi-lib/tt.c: * dvi/mdvi-lib/util.c: * dvi/mdvi-lib/vf.c: * dvi/pixbuf-device.c: * dvi/pixbuf-device.h: * impress/Makefile.am: * impress/common.h: * impress/document.c: * impress/f_oasis.c: * impress/f_oo13.c: * impress/iksemel.c: * impress/iksemel.h: * impress/imposter.h: * impress/impress-document.c: * impress/impress-document.h: * impress/internal.h: * impress/r_back.c: * impress/r_draw.c: * impress/r_geometry.c: * impress/r_gradient.c: * impress/r_style.c: * impress/r_text.c: * impress/render.c: * impress/render.h: * impress/zip.c: * impress/zip.h: * lib/Makefile.am: * lib/ev-debug.c: * lib/ev-debug.h: * lib/ev-file-helpers.c: * lib/ev-file-helpers.h: * lib/ev-gui.c: * lib/ev-gui.h: * lib/ev-tooltip.c: * lib/ev-tooltip.h: * libdocument/Makefile.am: * libdocument/ev-file-helpers.c: * pdf/Makefile.am: * pdf/ev-poppler.cc: * pdf/ev-poppler.h: * pixbuf/Makefile.am: * pixbuf/pixbuf-document.c: * pixbuf/pixbuf-document.h: * properties/Makefile.am: * ps/Makefile.am: * ps/gsdefaults.c: * ps/gsdefaults.h: * ps/gsio.c: * ps/gsio.h: * ps/gstypes.h: * ps/ps-document.c: * ps/ps-document.h: * ps/ps.c: * ps/ps.h: * shell/Makefile.am: * shell/ev-application.h: * shell/ev-sidebar-links.c: * shell/ev-sidebar-links.h: * shell/ev-utils.c: (ev_gui_sanitise_popup_position), (ev_gui_menu_position_tree_selection): * shell/ev-utils.h: * shell/ev-view.c: (ev_view_finalize): * shell/ev-window.c: * shell/main.c: (main): * thumbnailer/Makefile.am: * tiff/Makefile.am: * tiff/tiff-document.c: * tiff/tiff-document.h: * tiff/tiff2ps.c: * tiff/tiff2ps.h: Reorganize source tree. svn path=/trunk/; revision=2197 --- (limited to 'backend/dvi/mdvi-lib/afmparse.c') diff --git a/backend/dvi/mdvi-lib/afmparse.c b/backend/dvi/mdvi-lib/afmparse.c new file mode 100644 index 0000000..5b8ac68 --- /dev/null +++ b/backend/dvi/mdvi-lib/afmparse.c @@ -0,0 +1,1302 @@ +/* + * (C) 1988, 1989, 1990 by Adobe Systems Incorporated. All rights reserved. + * + * This file may be freely copied and redistributed as long as: + * 1) This entire notice continues to be included in the file, + * 2) If the file has been modified in any way, a notice of such + * modification is conspicuously indicated. + * + * PostScript, Display PostScript, and Adobe are registered trademarks of + * Adobe Systems Incorporated. + * + * ************************************************************************ + * THE INFORMATION BELOW IS FURNISHED AS IS, IS SUBJECT TO CHANGE WITHOUT + * NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ADOBE SYSTEMS + * INCORPORATED. ADOBE SYSTEMS INCORPORATED ASSUMES NO RESPONSIBILITY OR + * LIABILITY FOR ANY ERRORS OR INACCURACIES, MAKES NO WARRANTY OF ANY + * KIND (EXPRESS, IMPLIED OR STATUTORY) WITH RESPECT TO THIS INFORMATION, + * AND EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR PARTICULAR PURPOSES AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. + * ************************************************************************ + */ + +/* + * modified for MDVI: + * - some names changed to avoid conflicts with T1lib + * - changed to ANSI C prototypes, as used by MDVI + * mal - 3/01 + */ + +/* parseAFM.c + * + * This file is used in conjuction with the parseAFM.h header file. + * This file contains several procedures that are used to parse AFM + * files. It is intended to work with an application program that needs + * font metric information. The program can be used as is by making a + * procedure call to "parseFile" (passing in the expected parameters) + * and having it fill in a data structure with the data from the + * AFM file, or an application developer may wish to customize this + * code. + * + * There is also a file, parseAFMclient.c, that is a sample application + * showing how to call the "parseFile" procedure and how to use the data + * after "parseFile" has returned. + * + * Please read the comments in parseAFM.h and parseAFMclient.c. + * + * History: + * original: DSM Thu Oct 20 17:39:59 PDT 1988 + * modified: DSM Mon Jul 3 14:17:50 PDT 1989 + * - added 'storageProblem' return code + * - fixed bug of not allocating extra byte for string duplication + * - fixed typos + * modified: DSM Tue Apr 3 11:18:34 PDT 1990 + * - added free(ident) at end of parseFile routine + * modified: DSM Tue Jun 19 10:16:29 PDT 1990 + * - changed (width == 250) to (width = 250) in initializeArray + */ + +#include "sysdeps.h" + +#ifdef WITH_AFM_FILES + +#include /* added for MDVI */ +#include /* added for MDVI */ + +#include +#include +#include +#include +#include "afmparse.h" +#undef VERSION + +#define lineterm EOL /* line terminating character */ +#define normalEOF 1 /* return code from parsing routines used only */ + /* in this module */ +#define Space "space" /* used in string comparison to look for the width */ + /* of the space character to init the widths array */ +#define False "false" /* used in string comparison to check the value of */ + /* boolean keys (e.g. IsFixedPitch) */ + +#define MATCH(A,B) (strncmp((A),(B), MAX_NAME) == 0) + + + +/*************************** GLOBALS ***********************/ + +static char *ident = NULL; /* storage buffer for keywords */ + + +/* "shorts" for fast case statement + * The values of each of these enumerated items correspond to an entry in the + * table of strings defined below. Therefore, if you add a new string as + * new keyword into the keyStrings table, you must also add a corresponding + * parseKey AND it MUST be in the same position! + * + * IMPORTANT: since the sorting algorithm is a binary search, the strings of + * keywords must be placed in lexicographical order, below. [Therefore, the + * enumerated items are not necessarily in lexicographical order, depending + * on the name chosen. BUT, they must be placed in the same position as the + * corresponding key string.] The NOPE shall remain in the last position, + * since it does not correspond to any key string, and it is used in the + * "recognize" procedure to calculate how many possible keys there are. + */ + +enum parseKey { + ASCENDER, CHARBBOX, CODE, COMPCHAR, CAPHEIGHT, COMMENT, + DESCENDER, ENCODINGSCHEME, ENDCHARMETRICS, ENDCOMPOSITES, + ENDFONTMETRICS, ENDKERNDATA, ENDKERNPAIRS, ENDTRACKKERN, + FAMILYNAME, FONTBBOX, FONTNAME, FULLNAME, ISFIXEDPITCH, + ITALICANGLE, KERNPAIR, KERNPAIRXAMT, LIGATURE, CHARNAME, + NOTICE, COMPCHARPIECE, STARTCHARMETRICS, STARTCOMPOSITES, + STARTFONTMETRICS, STARTKERNDATA, STARTKERNPAIRS, + STARTTRACKKERN, TRACKKERN, UNDERLINEPOSITION, + UNDERLINETHICKNESS, VERSION, XYWIDTH, XWIDTH, WEIGHT, XHEIGHT, + NOPE } ; + +/* keywords for the system: + * This a table of all of the current strings that are vaild AFM keys. + * Each entry can be referenced by the appropriate parseKey value (an + * enumerated data type defined above). If you add a new keyword here, + * a corresponding parseKey MUST be added to the enumerated data type + * defined above, AND it MUST be added in the same position as the + * string is in this table. + * + * IMPORTANT: since the sorting algorithm is a binary search, the keywords + * must be placed in lexicographical order. And, NULL should remain at the + * end. + */ + +static char *keyStrings[] = { + "Ascender", "B", "C", "CC", "CapHeight", "Comment", + "Descender", "EncodingScheme", "EndCharMetrics", "EndComposites", + "EndFontMetrics", "EndKernData", "EndKernPairs", "EndTrackKern", + "FamilyName", "FontBBox", "FontName", "FullName", "IsFixedPitch", + "ItalicAngle", "KP", "KPX", "L", "N", + "Notice", "PCC", "StartCharMetrics", "StartComposites", + "StartFontMetrics", "StartKernData", "StartKernPairs", + "StartTrackKern", "TrackKern", "UnderlinePosition", + "UnderlineThickness", "Version", "W", "WX", "Weight", "XHeight", + NULL }; + +/*************************** PARSING ROUTINES **************/ + +/*************************** token *************************/ + +/* A "AFM File Conventions" tokenizer. That means that it will + * return the next token delimited by white space. See also + * the `linetoken' routine, which does a similar thing but + * reads all tokens until the next end-of-line. + */ + +static char *token(FILE *stream) +{ + int ch, idx; + + /* skip over white space */ + while ((ch = fgetc(stream)) == ' ' || ch == lineterm || + ch == ',' || ch == '\t' || ch == ';'); + + idx = 0; + while (ch != EOF && ch != ' ' && ch != lineterm + && ch != '\t' && ch != ':' && ch != ';') + { + ident[idx++] = ch; + ch = fgetc(stream); + } /* while */ + + if (ch == EOF && idx < 1) return ((char *)NULL); + if (idx >= 1 && ch != ':' ) ungetc(ch, stream); + if (idx < 1 ) ident[idx++] = ch; /* single-character token */ + ident[idx] = 0; + + return(ident); /* returns pointer to the token */ + +} /* token */ + + +/*************************** linetoken *************************/ + +/* "linetoken" will get read all tokens until the EOL character from + * the given stream. This is used to get any arguments that can be + * more than one word (like Comment lines and FullName). + */ + +static char *linetoken(FILE *stream) +{ + int ch, idx; + + while ((ch = fgetc(stream)) == ' ' || ch == '\t' ); + + idx = 0; + while (ch != EOF && ch != lineterm) + { + ident[idx++] = ch; + ch = fgetc(stream); + } /* while */ + + ungetc(ch, stream); + ident[idx] = 0; + + return(ident); /* returns pointer to the token */ + +} /* linetoken */ + + +/*************************** recognize *************************/ + +/* This function tries to match a string to a known list of + * valid AFM entries (check the keyStrings array above). + * "ident" contains everything from white space through the + * next space, tab, or ":" character. + * + * The algorithm is a standard Knuth binary search. + */ + +static enum parseKey recognize(char *ident) +{ + int lower = 0, upper = (int) NOPE, midpoint, cmpvalue; + BOOL found = FALSE; + + while ((upper >= lower) && !found) + { + midpoint = (lower + upper)/2; + if (keyStrings[midpoint] == NULL) break; + cmpvalue = strncmp(ident, keyStrings[midpoint], MAX_NAME); + if (cmpvalue == 0) found = TRUE; + else if (cmpvalue < 0) upper = midpoint - 1; + else lower = midpoint + 1; + } /* while */ + + if (found) return (enum parseKey) midpoint; + else return NOPE; + +} /* recognize */ + + +/************************* parseGlobals *****************************/ + +/* This function is called by "parseFile". It will parse the AFM File + * up to the "StartCharMetrics" keyword, which essentially marks the + * end of the Global Font Information and the beginning of the character + * metrics information. + * + * If the caller of "parseFile" specified that it wanted the Global + * Font Information (as defined by the "AFM File Specification" + * document), then that information will be stored in the returned + * data structure. + * + * Any Global Font Information entries that are not found in a + * given file, will have the usual default initialization value + * for its type (i.e. entries of type int will be 0, etc). + * + * This function returns an error code specifying whether there was + * a premature EOF or a parsing error. This return value is used by + * parseFile to determine if there is more file to parse. + */ + +static BOOL parseGlobals(FILE *fp, GlobalFontInfo *gfi) +{ + BOOL cont = TRUE, save = (gfi != NULL); + int error = ok; + register char *keyword; + + while (cont) + { + keyword = token(fp); + + if (keyword == NULL) + /* Have reached an early and unexpected EOF. */ + /* Set flag and stop parsing */ + { + error = earlyEOF; + break; /* get out of loop */ + } + if (!save) + /* get tokens until the end of the Global Font info section */ + /* without saving any of the data */ + switch (recognize(keyword)) + { + case STARTCHARMETRICS: + cont = FALSE; + break; + case ENDFONTMETRICS: + cont = FALSE; + error = normalEOF; + break; + default: + break; + } /* switch */ + else + /* otherwise parse entire global font info section, */ + /* saving the data */ + switch(recognize(keyword)) + { + case STARTFONTMETRICS: + keyword = token(fp); + gfi->afmVersion = (char *) malloc(strlen(keyword) + 1); + strcpy(gfi->afmVersion, keyword); + break; + case COMMENT: + keyword = linetoken(fp); + break; + case FONTNAME: + keyword = token(fp); + gfi->fontName = (char *) malloc(strlen(keyword) + 1); + strcpy(gfi->fontName, keyword); + break; + case ENCODINGSCHEME: + keyword = token(fp); + gfi->encodingScheme = (char *) + malloc(strlen(keyword) + 1); + strcpy(gfi->encodingScheme, keyword); + break; + case FULLNAME: + keyword = linetoken(fp); + gfi->fullName = (char *) malloc(strlen(keyword) + 1); + strcpy(gfi->fullName, keyword); + break; + case FAMILYNAME: + keyword = linetoken(fp); + gfi->familyName = (char *) malloc(strlen(keyword) + 1); + strcpy(gfi->familyName, keyword); + break; + case WEIGHT: + keyword = token(fp); + gfi->weight = (char *) malloc(strlen(keyword) + 1); + strcpy(gfi->weight, keyword); + break; + case ITALICANGLE: + keyword = token(fp); + gfi->italicAngle = atof(keyword); + if (errno == ERANGE) error = parseError; + break; + case ISFIXEDPITCH: + keyword = token(fp); + if (MATCH(keyword, False)) + gfi->isFixedPitch = 0; + else + gfi->isFixedPitch = 1; + break; + case UNDERLINEPOSITION: + keyword = token(fp); + gfi->underlinePosition = atoi(keyword); + break; + case UNDERLINETHICKNESS: + keyword = token(fp); + gfi->underlineThickness = atoi(keyword); + break; + case VERSION: + keyword = token(fp); + gfi->version = (char *) malloc(strlen(keyword) + 1); + strcpy(gfi->version, keyword); + break; + case NOTICE: + keyword = linetoken(fp); + gfi->notice = (char *) malloc(strlen(keyword) + 1); + strcpy(gfi->notice, keyword); + break; + case FONTBBOX: + keyword = token(fp); + gfi->fontBBox.llx = atoi(keyword); + keyword = token(fp); + gfi->fontBBox.lly = atoi(keyword); + keyword = token(fp); + gfi->fontBBox.urx = atoi(keyword); + keyword = token(fp); + gfi->fontBBox.ury = atoi(keyword); + break; + case CAPHEIGHT: + keyword = token(fp); + gfi->capHeight = atoi(keyword); + break; + case XHEIGHT: + keyword = token(fp); + gfi->xHeight = atoi(keyword); + break; + case DESCENDER: + keyword = token(fp); + gfi->descender = atoi(keyword); + break; + case ASCENDER: + keyword = token(fp); + gfi->ascender = atoi(keyword); + break; + case STARTCHARMETRICS: + cont = FALSE; + break; + case ENDFONTMETRICS: + cont = FALSE; + error = normalEOF; + break; + case NOPE: + default: + error = parseError; + break; + } /* switch */ + } /* while */ + + return(error); + +} /* parseGlobals */ + + + +#if 0 /* this function does not seem to be used anywhere */ +/************************* initializeArray ************************/ + +/* Unmapped character codes are (at Adobe Systems) assigned the + * width of the space character (if one exists) else they get the + * value of 250 ems. This function initializes all entries in the + * char widths array to have this value. Then any mapped character + * codes will be replaced with the width of the appropriate character + * when parsing the character metric section. + + * This function parses the Character Metrics Section looking + * for a space character (by comparing character names). If found, + * the width of the space character will be used to initialize the + * values in the array of character widths. + * + * Before returning, the position of the read/write pointer of the + * file is reset to be where it was upon entering this function. + */ + +static int initializeArray(FILE *fp, int *cwi) +{ + BOOL cont = TRUE, found = FALSE; + long opos = ftell(fp); + int code = 0, width = 0, i = 0, error = 0; + register char *keyword; + + while (cont) + { + keyword = token(fp); + if (keyword == NULL) + { + error = earlyEOF; + break; /* get out of loop */ + } + switch(recognize(keyword)) + { + case COMMENT: + keyword = linetoken(fp); + break; + case CODE: + code = atoi(token(fp)); + break; + case XWIDTH: + width = atoi(token(fp)); + break; + case CHARNAME: + keyword = token(fp); + if (MATCH(keyword, Space)) + { + cont = FALSE; + found = TRUE; + } + break; + case ENDCHARMETRICS: + cont = FALSE; + break; + case ENDFONTMETRICS: + cont = FALSE; + error = normalEOF; + break; + case NOPE: + default: + error = parseError; + break; + } /* switch */ + } /* while */ + + if (!found) + width = 250; + + for (i = 0; i < 256; ++i) + cwi[i] = width; + + fseek(fp, opos, 0); + + return(error); + +} /* initializeArray */ +#endif /* unused */ + +/************************* parseCharWidths **************************/ + +/* This function is called by "parseFile". It will parse the AFM File + * up to the "EndCharMetrics" keyword. It will save the character + * width info (as opposed to all of the character metric information) + * if requested by the caller of parseFile. Otherwise, it will just + * parse through the section without saving any information. + * + * If data is to be saved, parseCharWidths is passed in a pointer + * to an array of widths that has already been initialized by the + * standard value for unmapped character codes. This function parses + * the Character Metrics section only storing the width information + * for the encoded characters into the array using the character code + * as the index into that array. + * + * This function returns an error code specifying whether there was + * a premature EOF or a parsing error. This return value is used by + * parseFile to determine if there is more file to parse. + */ + +static int parseCharWidths(FILE *fp, int *cwi) +{ + BOOL cont = TRUE, save = (cwi != NULL); + int pos = 0, error = ok; + register char *keyword; + + while (cont) + { + keyword = token(fp); + /* Have reached an early and unexpected EOF. */ + /* Set flag and stop parsing */ + if (keyword == NULL) + { + error = earlyEOF; + break; /* get out of loop */ + } + if (!save) + /* get tokens until the end of the Char Metrics section without */ + /* saving any of the data*/ + switch (recognize(keyword)) + { + case ENDCHARMETRICS: + cont = FALSE; + break; + case ENDFONTMETRICS: + cont = FALSE; + error = normalEOF; + break; + default: + break; + } /* switch */ + else + /* otherwise parse entire char metrics section, saving */ + /* only the char x-width info */ + switch(recognize(keyword)) + { + case COMMENT: + keyword = linetoken(fp); + break; + case CODE: + keyword = token(fp); + pos = atoi(keyword); + break; + case XYWIDTH: + /* PROBLEM: Should be no Y-WIDTH when doing "quick & dirty" */ + keyword = token(fp); keyword = token(fp); /* eat values */ + error = parseError; + break; + case XWIDTH: + keyword = token(fp); + if (pos >= 0) /* ignore unmapped chars */ + cwi[pos] = atoi(keyword); + break; + case ENDCHARMETRICS: + cont = FALSE; + break; + case ENDFONTMETRICS: + cont = FALSE; + error = normalEOF; + break; + case CHARNAME: /* eat values (so doesn't cause parseError) */ + keyword = token(fp); + break; + case CHARBBOX: + keyword = token(fp); keyword = token(fp); + keyword = token(fp); keyword = token(fp); + break; + case LIGATURE: + keyword = token(fp); keyword = token(fp); + break; + case NOPE: + default: + error = parseError; + break; + } /* switch */ + } /* while */ + + return(error); + +} /* parseCharWidths */ + + +/************************* parseCharMetrics ************************/ + +/* This function is called by parseFile if the caller of parseFile + * requested that all character metric information be saved + * (as opposed to only the character width information). + * + * parseCharMetrics is passed in a pointer to an array of records + * to hold information on a per character basis. This function + * parses the Character Metrics section storing all character + * metric information for the ALL characters (mapped and unmapped) + * into the array. + * + * This function returns an error code specifying whether there was + * a premature EOF or a parsing error. This return value is used by + * parseFile to determine if there is more file to parse. + */ + +static int parseCharMetrics(FILE *fp, FontInfo *fi) +{ + BOOL cont = TRUE, firstTime = TRUE; + int error = ok, count = 0; + register CharMetricInfo *temp = fi->cmi; + register char *keyword; + + while (cont) + { + keyword = token(fp); + if (keyword == NULL) + { + error = earlyEOF; + break; /* get out of loop */ + } + switch(recognize(keyword)) + { + case COMMENT: + keyword = linetoken(fp); + break; + case CODE: + if (count < fi->numOfChars) + { + if (firstTime) firstTime = FALSE; + else temp++; + temp->code = atoi(token(fp)); + count++; + } + else + { + error = parseError; + cont = FALSE; + } + break; + case XYWIDTH: + temp->wx = atoi(token(fp)); + temp->wy = atoi(token(fp)); + break; + case XWIDTH: + temp->wx = atoi(token(fp)); + break; + case CHARNAME: + keyword = token(fp); + temp->name = (char *) malloc(strlen(keyword) + 1); + strcpy(temp->name, keyword); + break; + case CHARBBOX: + temp->charBBox.llx = atoi(token(fp)); + temp->charBBox.lly = atoi(token(fp)); + temp->charBBox.urx = atoi(token(fp)); + temp->charBBox.ury = atoi(token(fp)); + break; + case LIGATURE: { + Ligature **tail = &(temp->ligs); + Ligature *node = *tail; + + if (*tail != NULL) + { + while (node->next != NULL) + node = node->next; + tail = &(node->next); + } + + *tail = (Ligature *) calloc(1, sizeof(Ligature)); + keyword = token(fp); + (*tail)->succ = (char *) malloc(strlen(keyword) + 1); + strcpy((*tail)->succ, keyword); + keyword = token(fp); + (*tail)->lig = (char *) malloc(strlen(keyword) + 1); + strcpy((*tail)->lig, keyword); + break; } + case ENDCHARMETRICS: + cont = FALSE;; + break; + case ENDFONTMETRICS: + cont = FALSE; + error = normalEOF; + break; + case NOPE: + default: + error = parseError; + break; + } /* switch */ + } /* while */ + + if ((error == ok) && (count != fi->numOfChars)) + error = parseError; + + return(error); + +} /* parseCharMetrics */ + + + +/************************* parseTrackKernData ***********************/ + +/* This function is called by "parseFile". It will parse the AFM File + * up to the "EndTrackKern" or "EndKernData" keywords. It will save the + * track kerning data if requested by the caller of parseFile. + * + * parseTrackKernData is passed in a pointer to the FontInfo record. + * If data is to be saved, the FontInfo record will already contain + * a valid pointer to storage for the track kerning data. + * + * This function returns an error code specifying whether there was + * a premature EOF or a parsing error. This return value is used by + * parseFile to determine if there is more file to parse. + */ + +static int parseTrackKernData(FILE *fp, FontInfo *fi) +{ + BOOL cont = TRUE, save = (fi->tkd != NULL); + int pos = 0, error = ok, tcount = 0; + register char *keyword; + + while (cont) + { + keyword = token(fp); + + if (keyword == NULL) + { + error = earlyEOF; + break; /* get out of loop */ + } + if (!save) + /* get tokens until the end of the Track Kerning Data */ + /* section without saving any of the data */ + switch(recognize(keyword)) + { + case ENDTRACKKERN: + case ENDKERNDATA: + cont = FALSE; + break; + case ENDFONTMETRICS: + cont = FALSE; + error = normalEOF; + break; + default: + break; + } /* switch */ + else + /* otherwise parse entire Track Kerning Data section, */ + /* saving the data */ + switch(recognize(keyword)) + { + case COMMENT: + keyword = linetoken(fp); + break; + case TRACKKERN: + if (tcount < fi->numOfTracks) + { + keyword = token(fp); + fi->tkd[pos].degree = atoi(keyword); + keyword = token(fp); + fi->tkd[pos].minPtSize = atof(keyword); + if (errno == ERANGE) error = parseError; + keyword = token(fp); + fi->tkd[pos].minKernAmt = atof(keyword); + if (errno == ERANGE) error = parseError; + keyword = token(fp); + fi->tkd[pos].maxPtSize = atof(keyword); + if (errno == ERANGE) error = parseError; + keyword = token(fp); + fi->tkd[pos++].maxKernAmt = atof(keyword); + if (errno == ERANGE) error = parseError; + tcount++; + } + else + { + error = parseError; + cont = FALSE; + } + break; + case ENDTRACKKERN: + case ENDKERNDATA: + cont = FALSE; + break; + case ENDFONTMETRICS: + cont = FALSE; + error = normalEOF; + break; + case NOPE: + default: + error = parseError; + break; + } /* switch */ + } /* while */ + + if (error == ok && tcount != fi->numOfTracks) + error = parseError; + + return(error); + +} /* parseTrackKernData */ + + +/************************* parsePairKernData ************************/ + +/* This function is called by "parseFile". It will parse the AFM File + * up to the "EndKernPairs" or "EndKernData" keywords. It will save + * the pair kerning data if requested by the caller of parseFile. + * + * parsePairKernData is passed in a pointer to the FontInfo record. + * If data is to be saved, the FontInfo record will already contain + * a valid pointer to storage for the pair kerning data. + * + * This function returns an error code specifying whether there was + * a premature EOF or a parsing error. This return value is used by + * parseFile to determine if there is more file to parse. + */ + +static int parsePairKernData(FILE *fp, FontInfo *fi) +{ + BOOL cont = TRUE, save = (fi->pkd != NULL); + int pos = 0, error = ok, pcount = 0; + register char *keyword; + + while (cont) + { + keyword = token(fp); + + if (keyword == NULL) + { + error = earlyEOF; + break; /* get out of loop */ + } + if (!save) + /* get tokens until the end of the Pair Kerning Data */ + /* section without saving any of the data */ + switch(recognize(keyword)) + { + case ENDKERNPAIRS: + case ENDKERNDATA: + cont = FALSE; + break; + case ENDFONTMETRICS: + cont = FALSE; + error = normalEOF; + break; + default: + break; + } /* switch */ + else + /* otherwise parse entire Pair Kerning Data section, */ + /* saving the data */ + switch(recognize(keyword)) + { + case COMMENT: + keyword = linetoken(fp); + break; + case KERNPAIR: + if (pcount < fi->numOfPairs) + { + keyword = token(fp); + fi->pkd[pos].name1 = (char *) + malloc(strlen(keyword) + 1); + strcpy(fi->pkd[pos].name1, keyword); + keyword = token(fp); + fi->pkd[pos].name2 = (char *) + malloc(strlen(keyword) + 1); + strcpy(fi->pkd[pos].name2, keyword); + keyword = token(fp); + fi->pkd[pos].xamt = atoi(keyword); + keyword = token(fp); + fi->pkd[pos++].yamt = atoi(keyword); + pcount++; + } + else + { + error = parseError; + cont = FALSE; + } + break; + case KERNPAIRXAMT: + if (pcount < fi->numOfPairs) + { + keyword = token(fp); + fi->pkd[pos].name1 = (char *) + malloc(strlen(keyword) + 1); + strcpy(fi->pkd[pos].name1, keyword); + keyword = token(fp); + fi->pkd[pos].name2 = (char *) + malloc(strlen(keyword) + 1); + strcpy(fi->pkd[pos].name2, keyword); + keyword = token(fp); + fi->pkd[pos++].xamt = atoi(keyword); + pcount++; + } + else + { + error = parseError; + cont = FALSE; + } + break; + case ENDKERNPAIRS: + case ENDKERNDATA: + cont = FALSE; + break; + case ENDFONTMETRICS: + cont = FALSE; + error = normalEOF; + break; + case NOPE: + default: + error = parseError; + break; + } /* switch */ + } /* while */ + + if (error == ok && pcount != fi->numOfPairs) + error = parseError; + + return(error); + +} /* parsePairKernData */ + + +/************************* parseCompCharData **************************/ + +/* This function is called by "parseFile". It will parse the AFM File + * up to the "EndComposites" keyword. It will save the composite + * character data if requested by the caller of parseFile. + * + * parseCompCharData is passed in a pointer to the FontInfo record, and + * a boolean representing if the data should be saved. + * + * This function will create the appropriate amount of storage for + * the composite character data and store a pointer to the storage + * in the FontInfo record. + * + * This function returns an error code specifying whether there was + * a premature EOF or a parsing error. This return value is used by + * parseFile to determine if there is more file to parse. + */ + +static int parseCompCharData(FILE *fp, FontInfo *fi) +{ + BOOL cont = TRUE, firstTime = TRUE, save = (fi->ccd != NULL); + int pos = 0, j = 0, error = ok, ccount = 0, pcount = 0; + register char *keyword; + + while (cont) + { + keyword = token(fp); + if (keyword == NULL) + /* Have reached an early and unexpected EOF. */ + /* Set flag and stop parsing */ + { + error = earlyEOF; + break; /* get out of loop */ + } + if (ccount > fi->numOfComps) + { + error = parseError; + break; /* get out of loop */ + } + if (!save) + /* get tokens until the end of the Composite Character info */ + /* section without saving any of the data */ + switch(recognize(keyword)) + { + case ENDCOMPOSITES: + cont = FALSE; + break; + case ENDFONTMETRICS: + cont = FALSE; + error = normalEOF; + break; + default: + break; + } /* switch */ + else + /* otherwise parse entire Composite Character info section, */ + /* saving the data */ + switch(recognize(keyword)) + { + case COMMENT: + keyword = linetoken(fp); + break; + case COMPCHAR: + if (ccount < fi->numOfComps) + { + keyword = token(fp); + if (pcount != fi->ccd[pos].numOfPieces) + error = parseError; + pcount = 0; + if (firstTime) firstTime = FALSE; + else pos++; + fi->ccd[pos].ccName = (char *) + malloc(strlen(keyword) + 1); + strcpy(fi->ccd[pos].ccName, keyword); + keyword = token(fp); + fi->ccd[pos].numOfPieces = atoi(keyword); + fi->ccd[pos].pieces = (Pcc *) + calloc(fi->ccd[pos].numOfPieces, sizeof(Pcc)); + j = 0; + ccount++; + } + else + { + error = parseError; + cont = FALSE; + } + break; + case COMPCHARPIECE: + if (pcount < fi->ccd[pos].numOfPieces) + { + keyword = token(fp); + fi->ccd[pos].pieces[j].pccName = (char *) + malloc(strlen(keyword) + 1); + strcpy(fi->ccd[pos].pieces[j].pccName, keyword); + keyword = token(fp); + fi->ccd[pos].pieces[j].deltax = atoi(keyword); + keyword = token(fp); + fi->ccd[pos].pieces[j++].deltay = atoi(keyword); + pcount++; + } + else + error = parseError; + break; + case ENDCOMPOSITES: + cont = FALSE; + break; + case ENDFONTMETRICS: + cont = FALSE; + error = normalEOF; + break; + case NOPE: + default: + error = parseError; + break; + } /* switch */ + } /* while */ + + if (error == ok && ccount != fi->numOfComps) + error = parseError; + + return(error); + +} /* parseCompCharData */ + + + + +/*************************** 'PUBLIC' FUNCTION ********************/ + + +/*************************** parseFile *****************************/ + +/* parseFile is the only 'public' procedure available. It is called + * from an application wishing to get information from an AFM file. + * The caller of this function is responsible for locating and opening + * an AFM file and handling all errors associated with that task. + * + * parseFile expects 3 parameters: a vaild file pointer, a pointer + * to a (FontInfo *) variable (for which storage will be allocated and + * the data requested filled in), and a mask specifying which + * data from the AFM File should be saved in the FontInfo structure. + * + * The file will be parsed and the requested data will be stored in + * a record of type FontInfo (refer to ParseAFM.h). + * + * parseFile returns an error code as defined in parseAFM.h. + * + * The position of the read/write pointer associated with the file + * pointer upon return of this function is undefined. + */ + +extern int afm_parse_file(FILE *fp, FontInfo **fi, FLAGS flags) +{ + + int code = ok; /* return code from each of the parsing routines */ + int error = ok; /* used as the return code from this function */ + + register char *keyword; /* used to store a token */ + + + /* storage data for the global variable ident */ + ident = (char *) calloc(MAX_NAME, sizeof(char)); + if (ident == NULL) {error = storageProblem; return(error);} + + (*fi) = (FontInfo *) calloc(1, sizeof(FontInfo)); + if ((*fi) == NULL) {error = storageProblem; return(error);} + + if (flags & P_G) + { + (*fi)->gfi = (GlobalFontInfo *) calloc(1, sizeof(GlobalFontInfo)); + if ((*fi)->gfi == NULL) {error = storageProblem; return(error);} + } + + /* The AFM File begins with Global Font Information. This section */ + /* will be parsed whether or not information should be saved. */ + code = parseGlobals(fp, (*fi)->gfi); + + if (code < 0) error = code; + + /* The Global Font Information is followed by the Character Metrics */ + /* section. Which procedure is used to parse this section depends on */ + /* how much information should be saved. If all of the metrics info */ + /* is wanted, parseCharMetrics is called. If only the character widths */ + /* is wanted, parseCharWidths is called. parseCharWidths will also */ + /* be called in the case that no character data is to be saved, just */ + /* to parse through the section. */ + + if ((code != normalEOF) && (code != earlyEOF)) + { + (*fi)->numOfChars = atoi(token(fp)); + if (flags & (P_M ^ P_W)) + { + (*fi)->cmi = (CharMetricInfo *) + calloc((*fi)->numOfChars, sizeof(CharMetricInfo)); + if ((*fi)->cmi == NULL) {error = storageProblem; return(error);} + code = parseCharMetrics(fp, *fi); + } + else + { + if (flags & P_W) + { + (*fi)->cwi = (int *) calloc(256, sizeof(int)); + if ((*fi)->cwi == NULL) + { + error = storageProblem; + return(error); + } + } + /* parse section regardless */ + code = parseCharWidths(fp, (*fi)->cwi); + } /* else */ + } /* if */ + + if ((error != earlyEOF) && (code < 0)) error = code; + + /* The remaining sections of the AFM are optional. This code will */ + /* look at the next keyword in the file to determine what section */ + /* is next, and then allocate the appropriate amount of storage */ + /* for the data (if the data is to be saved) and call the */ + /* appropriate parsing routine to parse the section. */ + + while ((code != normalEOF) && (code != earlyEOF)) + { + keyword = token(fp); + if (keyword == NULL) + /* Have reached an early and unexpected EOF. */ + /* Set flag and stop parsing */ + { + code = earlyEOF; + break; /* get out of loop */ + } + switch(recognize(keyword)) + { + case STARTKERNDATA: + break; + case ENDKERNDATA: + break; + case STARTTRACKKERN: + keyword = token(fp); + if (flags & P_T) + { + (*fi)->numOfTracks = atoi(keyword); + (*fi)->tkd = (TrackKernData *) + calloc((*fi)->numOfTracks, sizeof(TrackKernData)); + if ((*fi)->tkd == NULL) + { + error = storageProblem; + return(error); + } + } /* if */ + code = parseTrackKernData(fp, *fi); + break; + case STARTKERNPAIRS: + keyword = token(fp); + if (flags & P_P) + { + (*fi)->numOfPairs = atoi(keyword); + (*fi)->pkd = (PairKernData *) + calloc((*fi)->numOfPairs, sizeof(PairKernData)); + if ((*fi)->pkd == NULL) + { + error = storageProblem; + return(error); + } + } /* if */ + code = parsePairKernData(fp, *fi); + break; + case STARTCOMPOSITES: + keyword = token(fp); + if (flags & P_C) + { + (*fi)->numOfComps = atoi(keyword); + (*fi)->ccd = (CompCharData *) + calloc((*fi)->numOfComps, sizeof(CompCharData)); + if ((*fi)->ccd == NULL) + { + error = storageProblem; + return(error); + } + } /* if */ + code = parseCompCharData(fp, *fi); + break; + case ENDFONTMETRICS: + code = normalEOF; + break; + case NOPE: + default: + code = parseError; + break; + } /* switch */ + + if ((error != earlyEOF) && (code < 0)) error = code; + + } /* while */ + + if ((error != earlyEOF) && (code < 0)) error = code; + + if (ident != NULL) { free(ident); ident = NULL; } + + return(error); + +} /* parseFile */ + +/* added for MDVI: this function was copied from `parseAFMclient.c' */ + +void afm_free_fontinfo(FontInfo *fi) +{ + if (fi != NULL) + { + if (fi->gfi != NULL) + { + free(fi->gfi->afmVersion); fi->gfi->afmVersion = NULL; + free(fi->gfi->fontName); fi->gfi->fontName = NULL; + free(fi->gfi->fullName); fi->gfi->fullName = NULL; + free(fi->gfi->familyName); fi->gfi->familyName = NULL; + free(fi->gfi->weight); fi->gfi->weight = NULL; + free(fi->gfi->version); fi->gfi->version = NULL; + free(fi->gfi->notice); fi->gfi->notice = NULL; + free(fi->gfi->encodingScheme); fi->gfi->encodingScheme = NULL; + free(fi->gfi); fi->gfi = NULL; + } + + if (fi->cwi != NULL) + { free(fi->cwi); fi->cwi = NULL; } + + if (fi->cmi != NULL) + { + int i = 0; + CharMetricInfo *temp = fi->cmi; + Ligature *node = temp->ligs; + + for (i = 0; i < fi->numOfChars; ++i) + { + for (node = temp->ligs; node != NULL; node = node->next) + { + free(node->succ); node->succ = NULL; + free(node->lig); node->lig = NULL; + } + + free(temp->name); temp->name = NULL; + temp++; + } + + free(fi->cmi); fi->cmi = NULL; + } + + if (fi->tkd != NULL) + { free(fi->tkd); fi->tkd = NULL; } + + if (fi->pkd != NULL) + { + free(fi->pkd->name1); fi->pkd->name1 = NULL; + free(fi->pkd->name2); fi->pkd->name2 = NULL; + free(fi->pkd); fi->pkd = NULL; + } + + if (fi->ccd != NULL) + { + int i = 0, j = 0; + CompCharData *ccd = fi->ccd; + + for (i = 0; i < fi->numOfComps; ++i) + { + for (j = 0; j < ccd[i].numOfPieces; ++j) + { + free(ccd[i].pieces[j].pccName); + ccd[i].pieces[j].pccName = NULL; + } + + free(ccd[i].ccName); ccd[i].ccName = NULL; + } + + free(fi->ccd); fi->ccd = NULL; + } + + free(fi); + + } /* if */ + +} /* afm_free_fontinfo */ + +#endif /* WITH_AFM_FILES */ -- cgit v0.9.1