1 #include "mupdf/fitz.h"
2 #include "mupdf/pdf.h"
3
4 #include <string.h>
5 #include <stdlib.h>
6
7 #include "encodings.h"
8 #include "glyphlist.h"
9 #include "smallcaps.h"
10
11 #define FROM_UNICODE(ENC) \
12 int l = 0; \
13 int r = nelem(ENC##_from_unicode) - 1; \
14 if (u < 128) \
15 return u; \
16 while (l <= r) \
17 { \
18 int m = (l + r) >> 1; \
19 if (u < ENC##_from_unicode[m].u) \
20 r = m - 1; \
21 else if (u > ENC##_from_unicode[m].u) \
22 l = m + 1; \
23 else \
24 return ENC##_from_unicode[m].c; \
25 } \
26 return -1; \
27
fz_iso8859_1_from_unicode(int u)28 int fz_iso8859_1_from_unicode(int u) { FROM_UNICODE(iso8859_1) }
fz_iso8859_7_from_unicode(int u)29 int fz_iso8859_7_from_unicode(int u) { FROM_UNICODE(iso8859_7) }
fz_koi8u_from_unicode(int u)30 int fz_koi8u_from_unicode(int u) { FROM_UNICODE(koi8u) }
fz_windows_1250_from_unicode(int u)31 int fz_windows_1250_from_unicode(int u) { FROM_UNICODE(windows_1250) }
fz_windows_1251_from_unicode(int u)32 int fz_windows_1251_from_unicode(int u) { FROM_UNICODE(windows_1251) }
fz_windows_1252_from_unicode(int u)33 int fz_windows_1252_from_unicode(int u) { FROM_UNICODE(windows_1252) }
34
35 int
fz_unicode_from_glyph_name_strict(const char * name)36 fz_unicode_from_glyph_name_strict(const char *name)
37 {
38 int l = 0;
39 int r = nelem(single_name_list) - 1;
40
41 while (l <= r)
42 {
43 int m = (l + r) >> 1;
44 int c = strcmp(name, single_name_list[m]);
45 if (c < 0)
46 r = m - 1;
47 else if (c > 0)
48 l = m + 1;
49 else
50 return single_code_list[m];
51 }
52 return 0;
53 }
54
55 int
fz_unicode_from_glyph_name(const char * name)56 fz_unicode_from_glyph_name(const char *name)
57 {
58 char buf[64];
59 char *p;
60 int l = 0;
61 int r = nelem(single_name_list) - 1;
62 int code = 0;
63
64 fz_strlcpy(buf, name, sizeof buf);
65
66 /* kill anything after first period and underscore */
67 p = strchr(buf, '.');
68 if (p) p[0] = 0;
69 p = strchr(buf, '_');
70 if (p) p[0] = 0;
71
72 while (l <= r)
73 {
74 int m = (l + r) >> 1;
75 int c = strcmp(buf, single_name_list[m]);
76 if (c < 0)
77 r = m - 1;
78 else if (c > 0)
79 l = m + 1;
80 else
81 return single_code_list[m];
82 }
83
84 if (buf[0] == 'u' && buf[1] == 'n' && buf[2] == 'i' && strlen(buf) == 7)
85 code = strtol(buf + 3, NULL, 16);
86 else if (buf[0] == 'u')
87 code = strtol(buf + 1, NULL, 16);
88 else if (buf[0] == 'a' && buf[1] != 0 && buf[2] != 0)
89 code = strtol(buf + 1, NULL, 10);
90
91 return (code > 0 && code <= 0x10ffff) ? code : FZ_REPLACEMENT_CHARACTER;
92 }
93
94 static const char *empty_dup_list[] = { 0 };
95
96 const char **
fz_duplicate_glyph_names_from_unicode(int ucs)97 fz_duplicate_glyph_names_from_unicode(int ucs)
98 {
99 int l = 0;
100 int r = nelem(agl_dup_offsets) / 2 - 1;
101 while (l <= r)
102 {
103 int m = (l + r) >> 1;
104 if (ucs < agl_dup_offsets[m << 1])
105 r = m - 1;
106 else if (ucs > agl_dup_offsets[m << 1])
107 l = m + 1;
108 else
109 return agl_dup_names + agl_dup_offsets[(m << 1) + 1];
110 }
111 return empty_dup_list;
112 }
113
114 const char *
fz_glyph_name_from_unicode_sc(int u)115 fz_glyph_name_from_unicode_sc(int u)
116 {
117 int l = 0;
118 int r = nelem(glyph_name_from_unicode_sc) / 2 - 1;
119 while (l <= r)
120 {
121 int m = (l + r) >> 1;
122 if (u < glyph_name_from_unicode_sc[m].u)
123 r = m - 1;
124 else if (u > glyph_name_from_unicode_sc[m].u)
125 l = m + 1;
126 else
127 return glyph_name_from_unicode_sc[m].n;
128 }
129 return NULL;
130 }
131