/* $XConsortium: bdfutils.c,v 1.11 94/04/17 20:17:10 gildea Exp $ */ /************************************************************************ Copyright 1989 by Digital Equipment Corporation, Maynard, Massachusetts. All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of Digital not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ************************************************************************/ /* Copyright (c) 1994 X Consortium 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 X CONSORTIUM 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. Except as contained in this notice, the name of the X Consortium shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from the X Consortium. */ #include #include #include "fntfilst.h" #include "fontstruct.h" /* use bitmap structure */ #include "bitmap.h" #include "bdfint.h" int bdfFileLineNum; /***====================================================================***/ /* VARARGS1 */ void bdfError(message, a0, a1, a2, a3, a4, a5) char *message; pointer a0, a1, a2, a3, a4, a5; { fprintf(stderr, "BDF Error on line %d: ", bdfFileLineNum); fprintf(stderr, message, a0, a1, a2, a3, a4, a5); } /***====================================================================***/ /* VARARGS1 */ void bdfWarning(message, a0, a1, a2, a3, a4, a5) char *message; pointer a0, a1, a2, a3, a4, a5; { fprintf(stderr, "BDF Warning on line %d: ", bdfFileLineNum); fprintf(stderr, message, a0, a1, a2, a3, a4, a5); } /* * read the next (non-comment) line and keep a count for error messages. * Returns buf, or NULL if EOF. */ unsigned char * bdfGetLine(file, buf, len) FontFilePtr file; unsigned char *buf; int len; { int c; unsigned char *b; for (;;) { b = buf; while ((c = FontFileGetc(file)) != FontFileEOF) { if (c == '\r') continue; if (c == '\n') { bdfFileLineNum++; break; } if (b - buf >= (len - 1)) break; *b++ = c; } *b = '\0'; if (c == FontFileEOF) return NULL; if (b != buf && !bdfIsPrefix(buf, "COMMENT")) break; } return buf; } /***====================================================================***/ Atom bdfForceMakeAtom(str, size) register char *str; register int *size; { register int len = strlen(str); extern Atom MakeAtom(); if (size != NULL) *size += len + 1; return MakeAtom(str, len, TRUE); } /***====================================================================***/ /* * Handle quoted strings. */ Atom bdfGetPropertyValue(s) char *s; { register char *p, *pp; char *orig_s = s; Atom atom; /* strip leading white space */ while (*s && (*s == ' ' || *s == '\t')) s++; if (*s == 0) { return bdfForceMakeAtom(s, NULL); } if (*s != '"') { pp = s; /* no white space in value */ for (pp = s; *pp; pp++) if (*pp == ' ' || *pp == '\t' || *pp == '\015' || *pp == '\n') { *pp = 0; break; } return bdfForceMakeAtom(s, NULL); } /* quoted string: strip outer quotes and undouble inner quotes */ s++; pp = p = (char *) xalloc((unsigned) strlen(s) + 1); while (*s) { if (*s == '"') { if (*(s + 1) != '"') { *p++ = 0; atom = bdfForceMakeAtom(pp, NULL); xfree(pp); return atom; } else { s++; } } *p++ = *s++; } xfree (pp); bdfError("unterminated quoted string property: %s\n", (pointer) orig_s); return None; } /***====================================================================***/ /* * return TRUE if string is a valid integer */ int bdfIsInteger(str) char *str; { char c; c = *str++; if (!(isdigit(c) || c == '-' || c == '+')) return (FALSE); while (c = *str++) if (!isdigit(c)) return (FALSE); return (TRUE); } /***====================================================================***/ /* * make a byte from the first two hex characters in glyph picture */ unsigned char bdfHexByte(s) char *s; { unsigned char b = 0; register char c; int i; for (i = 2; i; i--) { c = *s++; if ((c >= '0') && (c <= '9')) b = (b << 4) + (c - '0'); else if ((c >= 'A') && (c <= 'F')) b = (b << 4) + 10 + (c - 'A'); else if ((c >= 'a') && (c <= 'f')) b = (b << 4) + 10 + (c - 'a'); else bdfError("bad hex char '%c'", c); } return b; } /***====================================================================***/ /* * check for known special property values */ static char *SpecialAtoms[] = { "FONT_ASCENT", #define BDF_FONT_ASCENT 0 "FONT_DESCENT", #define BDF_FONT_DESCENT 1 "DEFAULT_CHAR", #define BDF_DEFAULT_CHAR 2 "POINT_SIZE", #define BDF_POINT_SIZE 3 "RESOLUTION", #define BDF_RESOLUTION 4 "X_HEIGHT", #define BDF_X_HEIGHT 5 "WEIGHT", #define BDF_WEIGHT 6 "QUAD_WIDTH", #define BDF_QUAD_WIDTH 7 "FONT", #define BDF_FONT 8 "RESOLUTION_X", #define BDF_RESOLUTION_X 9 "RESOLUTION_Y", #define BDF_RESOLUTION_Y 10 0, }; Bool bdfSpecialProperty(pFont, prop, isString, bdfState) FontPtr pFont; FontPropPtr prop; char isString; bdfFileState *bdfState; { char **special; char *name; name = NameForAtom(prop->name); for (special = SpecialAtoms; *special; special++) if (!strcmp(name, *special)) break; switch (special - SpecialAtoms) { case BDF_FONT_ASCENT: if (!isString) { pFont->info.fontAscent = prop->value; bdfState->haveFontAscent = TRUE; } return TRUE; case BDF_FONT_DESCENT: if (!isString) { pFont->info.fontDescent = prop->value; bdfState->haveFontDescent = TRUE; } return TRUE; case BDF_DEFAULT_CHAR: if (!isString) { pFont->info.defaultCh = prop->value; bdfState->haveDefaultCh = TRUE; } return TRUE; case BDF_POINT_SIZE: bdfState->pointSizeProp = prop; return FALSE; case BDF_RESOLUTION: bdfState->resolutionProp = prop; return FALSE; case BDF_X_HEIGHT: bdfState->xHeightProp = prop; return FALSE; case BDF_WEIGHT: bdfState->weightProp = prop; return FALSE; case BDF_QUAD_WIDTH: bdfState->quadWidthProp = prop; return FALSE; case BDF_FONT: bdfState->fontProp = prop; return FALSE; case BDF_RESOLUTION_X: bdfState->resolutionXProp = prop; return FALSE; case BDF_RESOLUTION_Y: bdfState->resolutionYProp = prop; return FALSE; default: return FALSE; } }