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Diffstat (limited to 'libXfont/src/util/fontxlfd.c')
-rw-r--r--libXfont/src/util/fontxlfd.c1267
1 files changed, 632 insertions, 635 deletions
diff --git a/libXfont/src/util/fontxlfd.c b/libXfont/src/util/fontxlfd.c
index 664d7598f..26ef042e7 100644
--- a/libXfont/src/util/fontxlfd.c
+++ b/libXfont/src/util/fontxlfd.c
@@ -1,635 +1,632 @@
-/* $Xorg: fontxlfd.c,v 1.4 2001/02/09 02:04:04 xorgcvs Exp $ */
-
-/*
-
-Copyright 1990, 1998 The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-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 OPEN GROUP 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 Open Group 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 Open Group.
-
-*/
-/* $XFree86: xc/lib/font/util/fontxlfd.c,v 3.16tsi Exp $ */
-
-/*
- * Author: Keith Packard, MIT X Consortium
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <float.h>
-#include <X11/fonts/fontmisc.h>
-#include <X11/fonts/fontstruct.h>
-#include <X11/fonts/fontxlfd.h>
-#include <X11/fonts/fontutil.h>
-#include <X11/Xos.h>
-#include <math.h>
-#include <stdlib.h>
-#if defined(sony) && !defined(SYSTYPE_SYSV) && !defined(_SYSTYPE_SYSV)
-#define NO_LOCALE
-#endif
-#ifndef NO_LOCALE
-#include <locale.h>
-#endif
-#include <ctype.h>
-#include <stdio.h> /* for sprintf() */
-
-static char *
-GetInt(char *ptr, int *val)
-{
- if (*ptr == '*') {
- *val = -1;
- ptr++;
- } else
- for (*val = 0; *ptr >= '0' && *ptr <= '9';)
- *val = *val * 10 + *ptr++ - '0';
- if (*ptr == '-')
- return ptr;
- return (char *) 0;
-}
-
-#define minchar(p) ((p).min_char_low + ((p).min_char_high << 8))
-#define maxchar(p) ((p).max_char_low + ((p).max_char_high << 8))
-
-
-#ifndef NO_LOCALE
-static struct lconv *locale = 0;
-#endif
-static char *radix = ".", *plus = "+", *minus = "-";
-
-static char *
-readreal(char *ptr, double *result)
-{
- char buffer[80], *p1, *p2;
-
-#ifndef NO_LOCALE
- /* Figure out what symbols apply in this locale */
-
- if (!locale)
- {
- locale = localeconv();
- if (locale->decimal_point && *locale->decimal_point)
- radix = locale->decimal_point;
- if (locale->positive_sign && *locale->positive_sign)
- plus = locale->positive_sign;
- if (locale->negative_sign && *locale->negative_sign)
- minus = locale->negative_sign;
- }
-#endif
- /* Copy the first 80 chars of ptr into our local buffer, changing
- symbols as needed. */
- for (p1 = ptr, p2 = buffer;
- *p1 && (p2 - buffer) < sizeof(buffer) - 1;
- p1++, p2++)
- {
- switch(*p1)
- {
- case '~': *p2 = *minus; break;
- case '+': *p2 = *plus; break;
- case '.': *p2 = *radix; break;
- default: *p2 = *p1;
- }
- }
- *p2 = 0;
-
- /* Now we have something that strtod() can interpret... do it. */
- *result = strtod(buffer, &p1);
- /* Return NULL if failure, pointer past number if success */
- return (p1 == buffer) ? (char *)0 : (ptr + (p1 - buffer));
-}
-
-static char *
-xlfd_double_to_text(double value, char *buffer, int space_required)
-{
- char formatbuf[40];
- register char *p1;
- int ndigits, exponent;
-
-#ifndef NO_LOCALE
- if (!locale)
- {
- locale = localeconv();
- if (locale->decimal_point && *locale->decimal_point)
- radix = locale->decimal_point;
- if (locale->positive_sign && *locale->positive_sign)
- plus = locale->positive_sign;
- if (locale->negative_sign && *locale->negative_sign)
- minus = locale->negative_sign;
- }
-#endif
- /* Compute a format to use to render the number */
- sprintf(formatbuf, "%%.%dle", XLFD_NDIGITS);
-
- if (space_required)
- *buffer++ = ' ';
-
- /* Render the number using printf's idea of formatting */
- sprintf(buffer, formatbuf, value);
-
- /* Find and read the exponent value */
- for (p1 = buffer + strlen(buffer);
- *p1-- != 'e' && p1[1] != 'E';);
- exponent = atoi(p1 + 2);
- if (value == 0.0) exponent = 0;
-
- /* Figure out how many digits are significant */
- while (p1 >= buffer && (!isdigit(*p1) || *p1 == '0')) p1--;
- ndigits = 0;
- while (p1 >= buffer) if (isdigit(*p1--)) ndigits++;
-
- /* Figure out notation to use */
- if (exponent >= XLFD_NDIGITS || ndigits - exponent > XLFD_NDIGITS + 1)
- {
- /* Scientific */
- sprintf(formatbuf, "%%.%dle", ndigits - 1);
- sprintf(buffer, formatbuf, value);
- }
- else
- {
- /* Fixed */
- ndigits -= exponent + 1;
- if (ndigits < 0) ndigits = 0;
- sprintf(formatbuf, "%%.%dlf", ndigits);
- sprintf(buffer, formatbuf, value);
- if (exponent < 0)
- {
- p1 = buffer;
- while (*p1 && *p1 != '0') p1++;
- while (*p1++) p1[-1] = *p1;
- }
- }
-
- /* Last step, convert the locale-specific sign and radix characters
- to our own. */
- for (p1 = buffer; *p1; p1++)
- {
- if (*p1 == *minus) *p1 = '~';
- else if (*p1 == *plus) *p1 = '+';
- else if (*p1 == *radix) *p1 = '.';
- }
-
- return buffer - space_required;
-}
-
-double
-xlfd_round_double(double x)
-{
- /* Utility for XLFD users to round numbers to XLFD_NDIGITS
- significant digits. How do you round to n significant digits on
- a binary machine? */
-
-#if defined(i386) || defined(__i386__) || \
- defined(ia64) || defined(__ia64__) || \
- defined(__alpha__) || defined(__alpha) || \
- defined(__hppa__) || \
- defined(__amd64__) || defined(__amd64) || \
- defined(sgi)
-
-/* if we have IEEE 754 fp, we can round to binary digits... */
-
-#if (FLT_RADIX == 2) && (DBL_DIG == 15) && (DBL_MANT_DIG == 53)
-
-#ifndef M_LN2
-#define M_LN2 0.69314718055994530942
-#endif
-#ifndef M_LN10
-#define M_LN10 2.30258509299404568402
-#endif
-
-/* convert # of decimal digits to # of binary digits */
-#define XLFD_NDIGITS_2 ((int)(XLFD_NDIGITS * M_LN10 / M_LN2 + 0.5))
-
- union conv_d {
- double d;
- unsigned char b[8];
- } d;
- int i,j,k,d_exp;
-
- if (x == 0)
- return x;
-
- /* do minor sanity check for IEEE 754 fp and correct byte order */
- d.d = 1.0;
- if (sizeof(double) == 8 && d.b[7] == 0x3f && d.b[6] == 0xf0) {
-
- /*
- * this code will round IEEE 754 double to XLFD_NDIGITS_2 binary digits
- */
-
- d.d = x;
- d_exp = (d.b[7] << 4) | (d.b[6] >> 4);
-
- i = (DBL_MANT_DIG-XLFD_NDIGITS_2) >> 3;
- j = 1 << ((DBL_MANT_DIG-XLFD_NDIGITS_2) & 0x07);
- for (; i<7; i++) {
- k = d.b[i] + j;
- d.b[i] = k&0xff;
- if (k & 0x100) j = 1;
- else break;
- }
- if ((i==7) && ((d.b[6] & 0xf0) != ((d_exp<<4) & 0xf0))) {
- /* mantissa overflow: increment exponent */
- d_exp = (d_exp & 0x800 ) | ((d_exp & 0x7ff) + 1);
- d.b[7] = d_exp >> 4;
- d.b[6] = (d.b[6] & 0x0f) | (d_exp << 4);
- }
-
- i = (DBL_MANT_DIG-XLFD_NDIGITS_2) >> 3;
- j = 1 << ((DBL_MANT_DIG-XLFD_NDIGITS_2) & 0x07);
- d.b[i] &= ~(j-1);
- for (;--i>=0;) d.b[i] = 0;
-
- return d.d;
- }
- else
-#endif
-#endif /* i386 || __i386__ */
- {
- /*
- * If not IEEE 754: Let printf() do it for you.
- */
-
- char formatbuf[40], buffer[40];
-
- sprintf(formatbuf, "%%.%dlg", XLFD_NDIGITS);
- sprintf(buffer, formatbuf, x);
- return atof(buffer);
- }
-}
-
-static char *
-GetMatrix(char *ptr, FontScalablePtr vals, int which)
-{
- double *matrix;
-
- if (which == PIXELSIZE_MASK)
- matrix = vals->pixel_matrix;
- else if (which == POINTSIZE_MASK)
- matrix = vals->point_matrix;
- else return (char *)0;
-
- while (isspace(*ptr)) ptr++;
- if (*ptr == '[')
- {
- /* This is a matrix containing real numbers. It would be nice
- to use strtod() or sscanf() to read the numbers, but those
- don't handle '~' for minus and we cannot force them to use a
- "." for the radix. We'll have to do the hard work ourselves
- (in readreal()). */
-
- if ((ptr = readreal(++ptr, matrix + 0)) &&
- (ptr = readreal(ptr, matrix + 1)) &&
- (ptr = readreal(ptr, matrix + 2)) &&
- (ptr = readreal(ptr, matrix + 3)))
- {
- while (isspace(*ptr)) ptr++;
- if (*ptr != ']')
- ptr = (char *)0;
- else
- {
- ptr++;
- while (isspace(*ptr)) ptr++;
- if (*ptr == '-')
- {
- if (which == POINTSIZE_MASK)
- vals->values_supplied |= POINTSIZE_ARRAY;
- else
- vals->values_supplied |= PIXELSIZE_ARRAY;
- }
- else ptr = (char *)0;
- }
- }
- }
- else
- {
- int value;
- if ((ptr = GetInt(ptr, &value)))
- {
- vals->values_supplied &= ~which;
- if (value > 0)
- {
- matrix[3] = (double)value;
- if (which == POINTSIZE_MASK)
- {
- matrix[3] /= 10.0;
- vals->values_supplied |= POINTSIZE_SCALAR;
- }
- else
- vals->values_supplied |= PIXELSIZE_SCALAR;
- /* If we're concocting the pixelsize array from a scalar,
- we will need to normalize element 0 for the pixel shape.
- This is done in FontFileCompleteXLFD(). */
- matrix[0] = matrix[3];
- matrix[1] = matrix[2] = 0.0;
- }
- else if (value < 0)
- {
- if (which == POINTSIZE_MASK)
- vals->values_supplied |= POINTSIZE_WILDCARD;
- else
- vals->values_supplied |= PIXELSIZE_WILDCARD;
- }
- }
- }
- return ptr;
-}
-
-
-static void
-append_ranges(char *fname, int nranges, fsRange *ranges)
-{
- if (nranges)
- {
- int i;
-
- strcat(fname, "[");
- for (i = 0; i < nranges && strlen(fname) < 1010; i++)
- {
- if (i) strcat(fname, " ");
- sprintf(fname + strlen(fname), "%d",
- minchar(ranges[i]));
- if (ranges[i].min_char_low ==
- ranges[i].max_char_low &&
- ranges[i].min_char_high ==
- ranges[i].max_char_high) continue;
- sprintf(fname + strlen(fname), "_%d",
- maxchar(ranges[i]));
- }
- strcat(fname, "]");
- }
-}
-
-Bool
-FontParseXLFDName(char *fname, FontScalablePtr vals, int subst)
-{
- register char *ptr;
- register char *ptr1,
- *ptr2,
- *ptr3,
- *ptr4;
- register char *ptr5;
- FontScalableRec tmpvals;
- char replaceChar = '0';
- char tmpBuf[1024];
- int spacingLen;
- int l;
- char *p;
-
- bzero(&tmpvals, sizeof(tmpvals));
- if (subst != FONT_XLFD_REPLACE_VALUE)
- *vals = tmpvals;
-
- if (!(*(ptr = fname) == '-' || (*ptr++ == '*' && *ptr == '-')) || /* fndry */
- !(ptr = strchr(ptr + 1, '-')) || /* family_name */
- !(ptr1 = ptr = strchr(ptr + 1, '-')) || /* weight_name */
- !(ptr = strchr(ptr + 1, '-')) || /* slant */
- !(ptr = strchr(ptr + 1, '-')) || /* setwidth_name */
- !(ptr = strchr(ptr + 1, '-')) || /* add_style_name */
- !(ptr = strchr(ptr + 1, '-')) || /* pixel_size */
- !(ptr = GetMatrix(ptr + 1, &tmpvals, PIXELSIZE_MASK)) ||
- !(ptr2 = ptr = GetMatrix(ptr + 1, &tmpvals, POINTSIZE_MASK)) ||
- !(ptr = GetInt(ptr + 1, &tmpvals.x)) || /* resolution_x */
- !(ptr3 = ptr = GetInt(ptr + 1, &tmpvals.y)) || /* resolution_y */
- !(ptr4 = ptr = strchr(ptr + 1, '-')) || /* spacing */
- !(ptr5 = ptr = GetInt(ptr + 1, &tmpvals.width)) || /* average_width */
- !(ptr = strchr(ptr + 1, '-')) || /* charset_registry */
- strchr(ptr + 1, '-'))/* charset_encoding */
- return FALSE;
-
- /* Lop off HP charset subsetting enhancement. Interpreting this
- field requires allocating some space in which to return the
- results. So, to prevent memory leaks, this procedure will simply
- lop off and ignore charset subsetting, and initialize the
- relevant vals fields to zero. It's up to the caller to make its
- own call to FontParseRanges() if it's interested in the charset
- subsetting. */
-
- if (subst != FONT_XLFD_REPLACE_NONE &&
- (p = strchr(strrchr(fname, '-'), '[')))
- {
- tmpvals.values_supplied |= CHARSUBSET_SPECIFIED;
- *p = '\0';
- }
-
- /* Fill in deprecated fields for the benefit of rasterizers that care
- about them. */
- tmpvals.pixel = (tmpvals.pixel_matrix[3] >= 0) ?
- (int)(tmpvals.pixel_matrix[3] + .5) :
- (int)(tmpvals.pixel_matrix[3] - .5);
- tmpvals.point = (tmpvals.point_matrix[3] >= 0) ?
- (int)(tmpvals.point_matrix[3] * 10 + .5) :
- (int)(tmpvals.point_matrix[3] * 10 - .5);
-
- spacingLen = ptr4 - ptr3 + 1;
-
- switch (subst) {
- case FONT_XLFD_REPLACE_NONE:
- *vals = tmpvals;
- break;
- case FONT_XLFD_REPLACE_STAR:
- replaceChar = '*';
- case FONT_XLFD_REPLACE_ZERO:
- strcpy(tmpBuf, ptr2);
- ptr5 = tmpBuf + (ptr5 - ptr2);
- ptr3 = tmpBuf + (ptr3 - ptr2);
- ptr2 = tmpBuf;
- ptr = ptr1 + 1;
-
- ptr = strchr(ptr, '-') + 1; /* skip weight */
- ptr = strchr(ptr, '-') + 1; /* skip slant */
- ptr = strchr(ptr, '-') + 1; /* skip setwidth_name */
- ptr = strchr(ptr, '-') + 1; /* skip add_style_name */
-
- if ((ptr - fname) + spacingLen + strlen(ptr5) + 10 >= (unsigned)1024)
- return FALSE;
- *ptr++ = replaceChar;
- *ptr++ = '-';
- *ptr++ = replaceChar;
- *ptr++ = '-';
- *ptr++ = '*';
- *ptr++ = '-';
- *ptr++ = '*';
- if (spacingLen > 2)
- {
- memmove(ptr, ptr3, spacingLen);
- ptr += spacingLen;
- }
- else
- {
- *ptr++ = '-';
- *ptr++ = '*';
- *ptr++ = '-';
- }
- *ptr++ = replaceChar;
- strcpy(ptr, ptr5);
- *vals = tmpvals;
- break;
- case FONT_XLFD_REPLACE_VALUE:
- if (vals->values_supplied & PIXELSIZE_MASK)
- {
- tmpvals.values_supplied =
- (tmpvals.values_supplied & ~PIXELSIZE_MASK) |
- (vals->values_supplied & PIXELSIZE_MASK);
- tmpvals.pixel_matrix[0] = vals->pixel_matrix[0];
- tmpvals.pixel_matrix[1] = vals->pixel_matrix[1];
- tmpvals.pixel_matrix[2] = vals->pixel_matrix[2];
- tmpvals.pixel_matrix[3] = vals->pixel_matrix[3];
- }
- if (vals->values_supplied & POINTSIZE_MASK)
- {
- tmpvals.values_supplied =
- (tmpvals.values_supplied & ~POINTSIZE_MASK) |
- (vals->values_supplied & POINTSIZE_MASK);
- tmpvals.point_matrix[0] = vals->point_matrix[0];
- tmpvals.point_matrix[1] = vals->point_matrix[1];
- tmpvals.point_matrix[2] = vals->point_matrix[2];
- tmpvals.point_matrix[3] = vals->point_matrix[3];
- }
- if (vals->x >= 0)
- tmpvals.x = vals->x;
- if (vals->y >= 0)
- tmpvals.y = vals->y;
- if (vals->width >= 0)
- tmpvals.width = vals->width;
- else if (vals->width < -1) /* overload: -1 means wildcard */
- tmpvals.width = -vals->width;
-
-
- p = ptr1 + 1; /* weight field */
- l = strchr(p, '-') - p;
- sprintf(tmpBuf, "%*.*s", l, l, p);
-
- p += l + 1; /* slant field */
- l = strchr(p, '-') - p;
- sprintf(tmpBuf + strlen(tmpBuf), "-%*.*s", l, l, p);
-
- p += l + 1; /* setwidth_name */
- l = strchr(p, '-') - p;
- sprintf(tmpBuf + strlen(tmpBuf), "-%*.*s", l, l, p);
-
- p += l + 1; /* add_style_name field */
- l = strchr(p, '-') - p;
- sprintf(tmpBuf + strlen(tmpBuf), "-%*.*s", l, l, p);
-
- strcat(tmpBuf, "-");
- if ((tmpvals.values_supplied & PIXELSIZE_MASK) == PIXELSIZE_ARRAY)
- {
- char buffer[80];
- strcat(tmpBuf, "[");
- strcat(tmpBuf, xlfd_double_to_text(tmpvals.pixel_matrix[0],
- buffer, 0));
- strcat(tmpBuf, xlfd_double_to_text(tmpvals.pixel_matrix[1],
- buffer, 1));
- strcat(tmpBuf, xlfd_double_to_text(tmpvals.pixel_matrix[2],
- buffer, 1));
- strcat(tmpBuf, xlfd_double_to_text(tmpvals.pixel_matrix[3],
- buffer, 1));
- strcat(tmpBuf, "]");
- }
- else
- {
- sprintf(tmpBuf + strlen(tmpBuf), "%d",
- (int)(tmpvals.pixel_matrix[3] + .5));
- }
- strcat(tmpBuf, "-");
- if ((tmpvals.values_supplied & POINTSIZE_MASK) == POINTSIZE_ARRAY)
- {
- char buffer[80];
- strcat(tmpBuf, "[");
- strcat(tmpBuf, xlfd_double_to_text(tmpvals.point_matrix[0],
- buffer, 0));
- strcat(tmpBuf, xlfd_double_to_text(tmpvals.point_matrix[1],
- buffer, 1));
- strcat(tmpBuf, xlfd_double_to_text(tmpvals.point_matrix[2],
- buffer, 1));
- strcat(tmpBuf, xlfd_double_to_text(tmpvals.point_matrix[3],
- buffer, 1));
- strcat(tmpBuf, "]");
- }
- else
- {
- sprintf(tmpBuf + strlen(tmpBuf), "%d",
- (int)(tmpvals.point_matrix[3] * 10.0 + .5));
- }
- sprintf(tmpBuf + strlen(tmpBuf), "-%d-%d%*.*s%d%s",
- tmpvals.x, tmpvals.y,
- spacingLen, spacingLen, ptr3, tmpvals.width, ptr5);
- strcpy(ptr1 + 1, tmpBuf);
- if ((vals->values_supplied & CHARSUBSET_SPECIFIED) && !vals->nranges)
- strcat(fname, "[]");
- else
- append_ranges(fname, vals->nranges, vals->ranges);
- break;
- }
- return TRUE;
-}
-
-fsRange *FontParseRanges(char *name, int *nranges)
-{
- int n;
- unsigned long l;
- char *p1, *p2;
- fsRange *result = (fsRange *)0;
-
- name = strchr(name, '-');
- for (n = 1; name && n < 14; n++)
- name = strchr(name + 1, '-');
-
- *nranges = 0;
- if (!name || !(p1 = strchr(name, '['))) return (fsRange *)0;
- p1++;
-
- while (*p1 && *p1 != ']')
- {
- fsRange thisrange;
-
- l = strtol(p1, &p2, 0);
- if (p2 == p1 || l > 0xffff) break;
- thisrange.max_char_low = thisrange.min_char_low = l & 0xff;
- thisrange.max_char_high = thisrange.min_char_high = l >> 8;
-
- p1 = p2;
- if (*p1 == ']' || *p1 == ' ')
- {
- while (*p1 == ' ') p1++;
- if (add_range(&thisrange, nranges, &result, TRUE) != Successful)
- break;
- }
- else if (*p1 == '_')
- {
- l = strtol(++p1, &p2, 0);
- if (p2 == p1 || l > 0xffff) break;
- thisrange.max_char_low = l & 0xff;
- thisrange.max_char_high = l >> 8;
- p1 = p2;
- if (*p1 == ']' || *p1 == ' ')
- {
- while (*p1 == ' ') p1++;
- if (add_range(&thisrange, nranges, &result, TRUE) != Successful)
- break;
- }
- }
- else break;
- }
-
- return result;
-}
+/*
+
+Copyright 1990, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+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 OPEN GROUP 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 Open Group 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 Open Group.
+
+*/
+
+/*
+ * Author: Keith Packard, MIT X Consortium
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <float.h>
+#include <X11/fonts/fontmisc.h>
+#include <X11/fonts/fontstruct.h>
+#include <X11/fonts/fontxlfd.h>
+#include <X11/fonts/fontutil.h>
+#include <X11/Xos.h>
+#include <math.h>
+#include <stdlib.h>
+#if defined(sony) && !defined(SYSTYPE_SYSV) && !defined(_SYSTYPE_SYSV)
+#define NO_LOCALE
+#endif
+#ifndef NO_LOCALE
+#include <locale.h>
+#endif
+#include <ctype.h>
+#include <stdio.h> /* for sprintf() */
+
+static char *
+GetInt(char *ptr, int *val)
+{
+ if (*ptr == '*') {
+ *val = -1;
+ ptr++;
+ } else
+ for (*val = 0; *ptr >= '0' && *ptr <= '9';)
+ *val = *val * 10 + *ptr++ - '0';
+ if (*ptr == '-')
+ return ptr;
+ return (char *) 0;
+}
+
+#define minchar(p) ((p).min_char_low + ((p).min_char_high << 8))
+#define maxchar(p) ((p).max_char_low + ((p).max_char_high << 8))
+
+
+#ifndef NO_LOCALE
+static struct lconv *locale = 0;
+#endif
+static char *radix = ".", *plus = "+", *minus = "-";
+
+static char *
+readreal(char *ptr, double *result)
+{
+ char buffer[80], *p1, *p2;
+
+#ifndef NO_LOCALE
+ /* Figure out what symbols apply in this locale */
+
+ if (!locale)
+ {
+ locale = localeconv();
+ if (locale->decimal_point && *locale->decimal_point)
+ radix = locale->decimal_point;
+ if (locale->positive_sign && *locale->positive_sign)
+ plus = locale->positive_sign;
+ if (locale->negative_sign && *locale->negative_sign)
+ minus = locale->negative_sign;
+ }
+#endif
+ /* Copy the first 80 chars of ptr into our local buffer, changing
+ symbols as needed. */
+ for (p1 = ptr, p2 = buffer;
+ *p1 && (p2 - buffer) < sizeof(buffer) - 1;
+ p1++, p2++)
+ {
+ switch(*p1)
+ {
+ case '~': *p2 = *minus; break;
+ case '+': *p2 = *plus; break;
+ case '.': *p2 = *radix; break;
+ default: *p2 = *p1;
+ }
+ }
+ *p2 = 0;
+
+ /* Now we have something that strtod() can interpret... do it. */
+ *result = strtod(buffer, &p1);
+ /* Return NULL if failure, pointer past number if success */
+ return (p1 == buffer) ? (char *)0 : (ptr + (p1 - buffer));
+}
+
+static char *
+xlfd_double_to_text(double value, char *buffer, int space_required)
+{
+ char formatbuf[40];
+ register char *p1;
+ int ndigits, exponent;
+
+#ifndef NO_LOCALE
+ if (!locale)
+ {
+ locale = localeconv();
+ if (locale->decimal_point && *locale->decimal_point)
+ radix = locale->decimal_point;
+ if (locale->positive_sign && *locale->positive_sign)
+ plus = locale->positive_sign;
+ if (locale->negative_sign && *locale->negative_sign)
+ minus = locale->negative_sign;
+ }
+#endif
+ /* Compute a format to use to render the number */
+ sprintf(formatbuf, "%%.%dle", XLFD_NDIGITS);
+
+ if (space_required)
+ *buffer++ = ' ';
+
+ /* Render the number using printf's idea of formatting */
+ sprintf(buffer, formatbuf, value);
+
+ /* Find and read the exponent value */
+ for (p1 = buffer + strlen(buffer);
+ *p1-- != 'e' && p1[1] != 'E';);
+ exponent = atoi(p1 + 2);
+ if (value == 0.0) exponent = 0;
+
+ /* Figure out how many digits are significant */
+ while (p1 >= buffer && (!isdigit(*p1) || *p1 == '0')) p1--;
+ ndigits = 0;
+ while (p1 >= buffer) if (isdigit(*p1--)) ndigits++;
+
+ /* Figure out notation to use */
+ if (exponent >= XLFD_NDIGITS || ndigits - exponent > XLFD_NDIGITS + 1)
+ {
+ /* Scientific */
+ sprintf(formatbuf, "%%.%dle", ndigits - 1);
+ sprintf(buffer, formatbuf, value);
+ }
+ else
+ {
+ /* Fixed */
+ ndigits -= exponent + 1;
+ if (ndigits < 0) ndigits = 0;
+ sprintf(formatbuf, "%%.%dlf", ndigits);
+ sprintf(buffer, formatbuf, value);
+ if (exponent < 0)
+ {
+ p1 = buffer;
+ while (*p1 && *p1 != '0') p1++;
+ while (*p1++) p1[-1] = *p1;
+ }
+ }
+
+ /* Last step, convert the locale-specific sign and radix characters
+ to our own. */
+ for (p1 = buffer; *p1; p1++)
+ {
+ if (*p1 == *minus) *p1 = '~';
+ else if (*p1 == *plus) *p1 = '+';
+ else if (*p1 == *radix) *p1 = '.';
+ }
+
+ return buffer - space_required;
+}
+
+double
+xlfd_round_double(double x)
+{
+ /* Utility for XLFD users to round numbers to XLFD_NDIGITS
+ significant digits. How do you round to n significant digits on
+ a binary machine? */
+
+#if defined(i386) || defined(__i386__) || \
+ defined(ia64) || defined(__ia64__) || \
+ defined(__alpha__) || defined(__alpha) || \
+ defined(__hppa__) || \
+ defined(__amd64__) || defined(__amd64) || \
+ defined(sgi)
+
+/* if we have IEEE 754 fp, we can round to binary digits... */
+
+#if (FLT_RADIX == 2) && (DBL_DIG == 15) && (DBL_MANT_DIG == 53)
+
+#ifndef M_LN2
+#define M_LN2 0.69314718055994530942
+#endif
+#ifndef M_LN10
+#define M_LN10 2.30258509299404568402
+#endif
+
+/* convert # of decimal digits to # of binary digits */
+#define XLFD_NDIGITS_2 ((int)(XLFD_NDIGITS * M_LN10 / M_LN2 + 0.5))
+
+ union conv_d {
+ double d;
+ unsigned char b[8];
+ } d;
+ int i,j,k,d_exp;
+
+ if (x == 0)
+ return x;
+
+ /* do minor sanity check for IEEE 754 fp and correct byte order */
+ d.d = 1.0;
+ if (sizeof(double) == 8 && d.b[7] == 0x3f && d.b[6] == 0xf0) {
+
+ /*
+ * this code will round IEEE 754 double to XLFD_NDIGITS_2 binary digits
+ */
+
+ d.d = x;
+ d_exp = (d.b[7] << 4) | (d.b[6] >> 4);
+
+ i = (DBL_MANT_DIG-XLFD_NDIGITS_2) >> 3;
+ j = 1 << ((DBL_MANT_DIG-XLFD_NDIGITS_2) & 0x07);
+ for (; i<7; i++) {
+ k = d.b[i] + j;
+ d.b[i] = k&0xff;
+ if (k & 0x100) j = 1;
+ else break;
+ }
+ if ((i==7) && ((d.b[6] & 0xf0) != ((d_exp<<4) & 0xf0))) {
+ /* mantissa overflow: increment exponent */
+ d_exp = (d_exp & 0x800 ) | ((d_exp & 0x7ff) + 1);
+ d.b[7] = d_exp >> 4;
+ d.b[6] = (d.b[6] & 0x0f) | (d_exp << 4);
+ }
+
+ i = (DBL_MANT_DIG-XLFD_NDIGITS_2) >> 3;
+ j = 1 << ((DBL_MANT_DIG-XLFD_NDIGITS_2) & 0x07);
+ d.b[i] &= ~(j-1);
+ for (;--i>=0;) d.b[i] = 0;
+
+ return d.d;
+ }
+ else
+#endif
+#endif /* i386 || __i386__ */
+ {
+ /*
+ * If not IEEE 754: Let printf() do it for you.
+ */
+
+ char formatbuf[40], buffer[40];
+
+ sprintf(formatbuf, "%%.%dlg", XLFD_NDIGITS);
+ sprintf(buffer, formatbuf, x);
+ return atof(buffer);
+ }
+}
+
+static char *
+GetMatrix(char *ptr, FontScalablePtr vals, int which)
+{
+ double *matrix;
+
+ if (which == PIXELSIZE_MASK)
+ matrix = vals->pixel_matrix;
+ else if (which == POINTSIZE_MASK)
+ matrix = vals->point_matrix;
+ else return (char *)0;
+
+ while (isspace(*ptr)) ptr++;
+ if (*ptr == '[')
+ {
+ /* This is a matrix containing real numbers. It would be nice
+ to use strtod() or sscanf() to read the numbers, but those
+ don't handle '~' for minus and we cannot force them to use a
+ "." for the radix. We'll have to do the hard work ourselves
+ (in readreal()). */
+
+ if ((ptr = readreal(++ptr, matrix + 0)) &&
+ (ptr = readreal(ptr, matrix + 1)) &&
+ (ptr = readreal(ptr, matrix + 2)) &&
+ (ptr = readreal(ptr, matrix + 3)))
+ {
+ while (isspace(*ptr)) ptr++;
+ if (*ptr != ']')
+ ptr = (char *)0;
+ else
+ {
+ ptr++;
+ while (isspace(*ptr)) ptr++;
+ if (*ptr == '-')
+ {
+ if (which == POINTSIZE_MASK)
+ vals->values_supplied |= POINTSIZE_ARRAY;
+ else
+ vals->values_supplied |= PIXELSIZE_ARRAY;
+ }
+ else ptr = (char *)0;
+ }
+ }
+ }
+ else
+ {
+ int value;
+ if ((ptr = GetInt(ptr, &value)))
+ {
+ vals->values_supplied &= ~which;
+ if (value > 0)
+ {
+ matrix[3] = (double)value;
+ if (which == POINTSIZE_MASK)
+ {
+ matrix[3] /= 10.0;
+ vals->values_supplied |= POINTSIZE_SCALAR;
+ }
+ else
+ vals->values_supplied |= PIXELSIZE_SCALAR;
+ /* If we're concocting the pixelsize array from a scalar,
+ we will need to normalize element 0 for the pixel shape.
+ This is done in FontFileCompleteXLFD(). */
+ matrix[0] = matrix[3];
+ matrix[1] = matrix[2] = 0.0;
+ }
+ else if (value < 0)
+ {
+ if (which == POINTSIZE_MASK)
+ vals->values_supplied |= POINTSIZE_WILDCARD;
+ else
+ vals->values_supplied |= PIXELSIZE_WILDCARD;
+ }
+ }
+ }
+ return ptr;
+}
+
+
+static void
+append_ranges(char *fname, int nranges, fsRange *ranges)
+{
+ if (nranges)
+ {
+ int i;
+
+ strcat(fname, "[");
+ for (i = 0; i < nranges && strlen(fname) < 1010; i++)
+ {
+ if (i) strcat(fname, " ");
+ sprintf(fname + strlen(fname), "%d",
+ minchar(ranges[i]));
+ if (ranges[i].min_char_low ==
+ ranges[i].max_char_low &&
+ ranges[i].min_char_high ==
+ ranges[i].max_char_high) continue;
+ sprintf(fname + strlen(fname), "_%d",
+ maxchar(ranges[i]));
+ }
+ strcat(fname, "]");
+ }
+}
+
+Bool
+FontParseXLFDName(char *fname, FontScalablePtr vals, int subst)
+{
+ register char *ptr;
+ register char *ptr1,
+ *ptr2,
+ *ptr3,
+ *ptr4;
+ register char *ptr5;
+ FontScalableRec tmpvals;
+ char replaceChar = '0';
+ char tmpBuf[1024];
+ int spacingLen;
+ int l;
+ char *p;
+
+ bzero(&tmpvals, sizeof(tmpvals));
+ if (subst != FONT_XLFD_REPLACE_VALUE)
+ *vals = tmpvals;
+
+ if (!(*(ptr = fname) == '-' || (*ptr++ == '*' && *ptr == '-')) || /* fndry */
+ !(ptr = strchr(ptr + 1, '-')) || /* family_name */
+ !(ptr1 = ptr = strchr(ptr + 1, '-')) || /* weight_name */
+ !(ptr = strchr(ptr + 1, '-')) || /* slant */
+ !(ptr = strchr(ptr + 1, '-')) || /* setwidth_name */
+ !(ptr = strchr(ptr + 1, '-')) || /* add_style_name */
+ !(ptr = strchr(ptr + 1, '-')) || /* pixel_size */
+ !(ptr = GetMatrix(ptr + 1, &tmpvals, PIXELSIZE_MASK)) ||
+ !(ptr2 = ptr = GetMatrix(ptr + 1, &tmpvals, POINTSIZE_MASK)) ||
+ !(ptr = GetInt(ptr + 1, &tmpvals.x)) || /* resolution_x */
+ !(ptr3 = ptr = GetInt(ptr + 1, &tmpvals.y)) || /* resolution_y */
+ !(ptr4 = ptr = strchr(ptr + 1, '-')) || /* spacing */
+ !(ptr5 = ptr = GetInt(ptr + 1, &tmpvals.width)) || /* average_width */
+ !(ptr = strchr(ptr + 1, '-')) || /* charset_registry */
+ strchr(ptr + 1, '-'))/* charset_encoding */
+ return FALSE;
+
+ /* Lop off HP charset subsetting enhancement. Interpreting this
+ field requires allocating some space in which to return the
+ results. So, to prevent memory leaks, this procedure will simply
+ lop off and ignore charset subsetting, and initialize the
+ relevant vals fields to zero. It's up to the caller to make its
+ own call to FontParseRanges() if it's interested in the charset
+ subsetting. */
+
+ if (subst != FONT_XLFD_REPLACE_NONE &&
+ (p = strchr(strrchr(fname, '-'), '[')))
+ {
+ tmpvals.values_supplied |= CHARSUBSET_SPECIFIED;
+ *p = '\0';
+ }
+
+ /* Fill in deprecated fields for the benefit of rasterizers that care
+ about them. */
+ tmpvals.pixel = (tmpvals.pixel_matrix[3] >= 0) ?
+ (int)(tmpvals.pixel_matrix[3] + .5) :
+ (int)(tmpvals.pixel_matrix[3] - .5);
+ tmpvals.point = (tmpvals.point_matrix[3] >= 0) ?
+ (int)(tmpvals.point_matrix[3] * 10 + .5) :
+ (int)(tmpvals.point_matrix[3] * 10 - .5);
+
+ spacingLen = ptr4 - ptr3 + 1;
+
+ switch (subst) {
+ case FONT_XLFD_REPLACE_NONE:
+ *vals = tmpvals;
+ break;
+ case FONT_XLFD_REPLACE_STAR:
+ replaceChar = '*';
+ case FONT_XLFD_REPLACE_ZERO:
+ strcpy(tmpBuf, ptr2);
+ ptr5 = tmpBuf + (ptr5 - ptr2);
+ ptr3 = tmpBuf + (ptr3 - ptr2);
+ ptr2 = tmpBuf;
+ ptr = ptr1 + 1;
+
+ ptr = strchr(ptr, '-') + 1; /* skip weight */
+ ptr = strchr(ptr, '-') + 1; /* skip slant */
+ ptr = strchr(ptr, '-') + 1; /* skip setwidth_name */
+ ptr = strchr(ptr, '-') + 1; /* skip add_style_name */
+
+ if ((ptr - fname) + spacingLen + strlen(ptr5) + 10 >= (unsigned)1024)
+ return FALSE;
+ *ptr++ = replaceChar;
+ *ptr++ = '-';
+ *ptr++ = replaceChar;
+ *ptr++ = '-';
+ *ptr++ = '*';
+ *ptr++ = '-';
+ *ptr++ = '*';
+ if (spacingLen > 2)
+ {
+ memmove(ptr, ptr3, spacingLen);
+ ptr += spacingLen;
+ }
+ else
+ {
+ *ptr++ = '-';
+ *ptr++ = '*';
+ *ptr++ = '-';
+ }
+ *ptr++ = replaceChar;
+ strcpy(ptr, ptr5);
+ *vals = tmpvals;
+ break;
+ case FONT_XLFD_REPLACE_VALUE:
+ if (vals->values_supplied & PIXELSIZE_MASK)
+ {
+ tmpvals.values_supplied =
+ (tmpvals.values_supplied & ~PIXELSIZE_MASK) |
+ (vals->values_supplied & PIXELSIZE_MASK);
+ tmpvals.pixel_matrix[0] = vals->pixel_matrix[0];
+ tmpvals.pixel_matrix[1] = vals->pixel_matrix[1];
+ tmpvals.pixel_matrix[2] = vals->pixel_matrix[2];
+ tmpvals.pixel_matrix[3] = vals->pixel_matrix[3];
+ }
+ if (vals->values_supplied & POINTSIZE_MASK)
+ {
+ tmpvals.values_supplied =
+ (tmpvals.values_supplied & ~POINTSIZE_MASK) |
+ (vals->values_supplied & POINTSIZE_MASK);
+ tmpvals.point_matrix[0] = vals->point_matrix[0];
+ tmpvals.point_matrix[1] = vals->point_matrix[1];
+ tmpvals.point_matrix[2] = vals->point_matrix[2];
+ tmpvals.point_matrix[3] = vals->point_matrix[3];
+ }
+ if (vals->x >= 0)
+ tmpvals.x = vals->x;
+ if (vals->y >= 0)
+ tmpvals.y = vals->y;
+ if (vals->width >= 0)
+ tmpvals.width = vals->width;
+ else if (vals->width < -1) /* overload: -1 means wildcard */
+ tmpvals.width = -vals->width;
+
+
+ p = ptr1 + 1; /* weight field */
+ l = strchr(p, '-') - p;
+ sprintf(tmpBuf, "%*.*s", l, l, p);
+
+ p += l + 1; /* slant field */
+ l = strchr(p, '-') - p;
+ sprintf(tmpBuf + strlen(tmpBuf), "-%*.*s", l, l, p);
+
+ p += l + 1; /* setwidth_name */
+ l = strchr(p, '-') - p;
+ sprintf(tmpBuf + strlen(tmpBuf), "-%*.*s", l, l, p);
+
+ p += l + 1; /* add_style_name field */
+ l = strchr(p, '-') - p;
+ sprintf(tmpBuf + strlen(tmpBuf), "-%*.*s", l, l, p);
+
+ strcat(tmpBuf, "-");
+ if ((tmpvals.values_supplied & PIXELSIZE_MASK) == PIXELSIZE_ARRAY)
+ {
+ char buffer[80];
+ strcat(tmpBuf, "[");
+ strcat(tmpBuf, xlfd_double_to_text(tmpvals.pixel_matrix[0],
+ buffer, 0));
+ strcat(tmpBuf, xlfd_double_to_text(tmpvals.pixel_matrix[1],
+ buffer, 1));
+ strcat(tmpBuf, xlfd_double_to_text(tmpvals.pixel_matrix[2],
+ buffer, 1));
+ strcat(tmpBuf, xlfd_double_to_text(tmpvals.pixel_matrix[3],
+ buffer, 1));
+ strcat(tmpBuf, "]");
+ }
+ else
+ {
+ sprintf(tmpBuf + strlen(tmpBuf), "%d",
+ (int)(tmpvals.pixel_matrix[3] + .5));
+ }
+ strcat(tmpBuf, "-");
+ if ((tmpvals.values_supplied & POINTSIZE_MASK) == POINTSIZE_ARRAY)
+ {
+ char buffer[80];
+ strcat(tmpBuf, "[");
+ strcat(tmpBuf, xlfd_double_to_text(tmpvals.point_matrix[0],
+ buffer, 0));
+ strcat(tmpBuf, xlfd_double_to_text(tmpvals.point_matrix[1],
+ buffer, 1));
+ strcat(tmpBuf, xlfd_double_to_text(tmpvals.point_matrix[2],
+ buffer, 1));
+ strcat(tmpBuf, xlfd_double_to_text(tmpvals.point_matrix[3],
+ buffer, 1));
+ strcat(tmpBuf, "]");
+ }
+ else
+ {
+ sprintf(tmpBuf + strlen(tmpBuf), "%d",
+ (int)(tmpvals.point_matrix[3] * 10.0 + .5));
+ }
+ sprintf(tmpBuf + strlen(tmpBuf), "-%d-%d%*.*s%d%s",
+ tmpvals.x, tmpvals.y,
+ spacingLen, spacingLen, ptr3, tmpvals.width, ptr5);
+ strcpy(ptr1 + 1, tmpBuf);
+ if ((vals->values_supplied & CHARSUBSET_SPECIFIED) && !vals->nranges)
+ strcat(fname, "[]");
+ else
+ append_ranges(fname, vals->nranges, vals->ranges);
+ break;
+ }
+ return TRUE;
+}
+
+fsRange *FontParseRanges(char *name, int *nranges)
+{
+ int n;
+ unsigned long l;
+ char *p1, *p2;
+ fsRange *result = (fsRange *)0;
+
+ name = strchr(name, '-');
+ for (n = 1; name && n < 14; n++)
+ name = strchr(name + 1, '-');
+
+ *nranges = 0;
+ if (!name || !(p1 = strchr(name, '['))) return (fsRange *)0;
+ p1++;
+
+ while (*p1 && *p1 != ']')
+ {
+ fsRange thisrange;
+
+ l = strtol(p1, &p2, 0);
+ if (p2 == p1 || l > 0xffff) break;
+ thisrange.max_char_low = thisrange.min_char_low = l & 0xff;
+ thisrange.max_char_high = thisrange.min_char_high = l >> 8;
+
+ p1 = p2;
+ if (*p1 == ']' || *p1 == ' ')
+ {
+ while (*p1 == ' ') p1++;
+ if (add_range(&thisrange, nranges, &result, TRUE) != Successful)
+ break;
+ }
+ else if (*p1 == '_')
+ {
+ l = strtol(++p1, &p2, 0);
+ if (p2 == p1 || l > 0xffff) break;
+ thisrange.max_char_low = l & 0xff;
+ thisrange.max_char_high = l >> 8;
+ p1 = p2;
+ if (*p1 == ']' || *p1 == ' ')
+ {
+ while (*p1 == ' ') p1++;
+ if (add_range(&thisrange, nranges, &result, TRUE) != Successful)
+ break;
+ }
+ }
+ else break;
+ }
+
+ return result;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-12 13:41:35 +0000