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-rw-r--r--Build/source/texk/dvipdfm-x/pst.c182
1 files changed, 182 insertions, 0 deletions
diff --git a/Build/source/texk/dvipdfm-x/pst.c b/Build/source/texk/dvipdfm-x/pst.c
new file mode 100644
index 00000000000..fd3dab66678
--- /dev/null
+++ b/Build/source/texk/dvipdfm-x/pst.c
@@ -0,0 +1,182 @@
+/*
+
+ This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks.
+
+ Copyright (C) 2002-2012 by Jin-Hwan Cho and Shunsaku Hirata,
+ the dvipdfmx project team.
+
+ Copyright (C) 1998, 1999 by Mark A. Wicks <mwicks@kettering.edu>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+*/
+
+#include <string.h>
+#include <ctype.h>
+
+#include "system.h"
+#include "mem.h"
+#include "error.h"
+#include "dpxutil.h"
+#include "pst_obj.h"
+#include "pst.h"
+
+
+#define TYPE_CHECK(o, t) do { \
+ if ((o) == NULL || pst_type_of((o)) != (t)) \
+ ERROR("typecheck: object %p not of type %d.", (o), (t)); \
+ } while (0)
+
+static pst_obj *
+pst_parse_any (unsigned char **inbuf, unsigned char *inbufend)
+{
+ unsigned char *data;
+ unsigned char *cur = *inbuf;
+ unsigned long len;
+
+ while (cur < inbufend && !PST_TOKEN_END(cur, inbufend))
+ cur++;
+
+ len = cur - (*inbuf);
+ data = NEW(len+1, unsigned char);
+ memcpy(data, *inbuf, len);
+ data[len] = '\0';
+
+ *inbuf = cur;
+ return pst_new_obj(PST_TYPE_UNKNOWN, data);
+}
+
+static void
+skip_line (unsigned char **inbuf, unsigned char *inbufend)
+{
+ while (*inbuf < inbufend && **inbuf != '\n' && **inbuf != '\r')
+ (*inbuf)++;
+ if (*inbuf < inbufend && **inbuf == '\r')
+ (*inbuf)++;
+ if (*inbuf < inbufend && **inbuf == '\n')
+ (*inbuf)++;
+}
+
+static void
+skip_comments (unsigned char **inbuf, unsigned char *inbufend)
+{
+ while (*inbuf < inbufend && **inbuf == '%') {
+ skip_line(inbuf, inbufend);
+ skip_white_spaces(inbuf, inbufend);
+ }
+}
+
+#if 0
+static pst_obj *
+pst_parse_comment (unsigned char **inbuf, unsigned char *inbufend)
+{
+ unsigned char *data;
+ unsigned char *cur = *inbuf;
+ unsigned long len;
+
+ if (*cur != '%')
+ return NULL;
+
+ while (cur < inbufend && *cur != '\n' && *cur != '\r')
+ cur++;
+ len = cur - (*inbuf);
+ data = NEW(len+1, unsigned char);
+ memcpy(data, *inbuf, len);
+ data[len] = '\0';
+
+ *inbuf = cur;
+ return pst_new_obj(PST_TYPE_UNKNOWN, data);
+}
+#endif
+
+/* NOTE: the input buffer must be null-terminated, i.e., *inbufend == 0 */
+pst_obj *
+pst_get_token (unsigned char **inbuf, unsigned char *inbufend)
+{
+ pst_obj *obj = NULL;
+ unsigned char c;
+
+ ASSERT(*inbuf <= inbufend && !*inbufend);
+
+ skip_white_spaces(inbuf, inbufend);
+ skip_comments(inbuf, inbufend);
+ if (*inbuf >= inbufend)
+ return NULL;
+ c = **inbuf;
+ switch (c) {
+#if 0
+ case '%':
+ obj = pst_parse_comment(inbuf, inbufend);
+ break;
+#endif
+ case '/':
+ obj = pst_parse_name(inbuf, inbufend);
+ break;
+ case '[': case '{': /* This is wrong */
+ obj = pst_new_mark();
+ (*inbuf)++;
+ break;
+ case '<':
+ if (*inbuf + 1 >= inbufend)
+ return NULL;
+ c = *(*inbuf+1);
+ if (c == '<') {
+ obj = pst_new_mark();
+ *inbuf += 2;
+ } else if (isxdigit(c))
+ obj = pst_parse_string(inbuf, inbufend);
+ else if (c == '~') /* ASCII85 */
+ obj = pst_parse_string(inbuf, inbufend);
+ break;
+ case '(':
+ obj = pst_parse_string(inbuf, inbufend);
+ break;
+ case '>':
+ if (*inbuf + 1 >= inbufend || *(*inbuf+1) != '>') {
+ ERROR("Unexpected end of ASCII hex string marker.");
+ } else {
+ char *mark;
+
+ mark = NEW(3, char);
+ mark[0] = '>'; mark[1] = '>'; mark[2] = '\0';
+ obj = pst_new_obj(PST_TYPE_UNKNOWN, mark);
+ (*inbuf) += 2;
+ }
+ break;
+ case ']': case '}':
+ {
+ char *mark;
+
+ mark = NEW(2, char);
+ mark[0] = c; mark[1] = '\0';
+ obj = pst_new_obj(PST_TYPE_UNKNOWN, mark);
+ (*inbuf)++;
+ }
+ break;
+ default:
+ if (c == 't' || c == 'f')
+ obj = pst_parse_boolean(inbuf, inbufend);
+ else if (c == 'n')
+ obj = pst_parse_null(inbuf, inbufend);
+ else if (c == '+' || c == '-' || isdigit(c) || c == '.')
+ obj = pst_parse_number(inbuf, inbufend);
+ break;
+ }
+
+ if (!obj) {
+ obj = pst_parse_any(inbuf, inbufend);
+ }
+
+ return obj;
+}