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-rw-r--r--pdf/pdf_cmap_parse.c344
1 files changed, 0 insertions, 344 deletions
diff --git a/pdf/pdf_cmap_parse.c b/pdf/pdf_cmap_parse.c
deleted file mode 100644
index 361c512f..00000000
--- a/pdf/pdf_cmap_parse.c
+++ /dev/null
@@ -1,344 +0,0 @@
-#include "mupdf/pdf.h"
-
-/*
- * CMap parser
- */
-
-static int
-pdf_code_from_string(char *buf, int len)
-{
- int a = 0;
- while (len--)
- a = (a << 8) | *(unsigned char *)buf++;
- return a;
-}
-
-static void
-pdf_parse_cmap_name(fz_context *ctx, pdf_cmap *cmap, fz_stream *file, pdf_lexbuf *buf)
-{
- pdf_token tok;
-
- tok = pdf_lex(file, buf);
-
- if (tok == PDF_TOK_NAME)
- fz_strlcpy(cmap->cmap_name, buf->scratch, sizeof(cmap->cmap_name));
- else
- fz_warn(ctx, "expected name after CMapName in cmap");
-}
-
-static void
-pdf_parse_wmode(fz_context *ctx, pdf_cmap *cmap, fz_stream *file, pdf_lexbuf *buf)
-{
- pdf_token tok;
-
- tok = pdf_lex(file, buf);
-
- if (tok == PDF_TOK_INT)
- pdf_set_cmap_wmode(ctx, cmap, buf->i);
- else
- fz_warn(ctx, "expected integer after WMode in cmap");
-}
-
-static void
-pdf_parse_codespace_range(fz_context *ctx, pdf_cmap *cmap, fz_stream *file, pdf_lexbuf *buf)
-{
- pdf_token tok;
- int lo, hi;
-
- while (1)
- {
- tok = pdf_lex(file, buf);
-
- if (tok == PDF_TOK_KEYWORD && !strcmp(buf->scratch, "endcodespacerange"))
- return;
-
- else if (tok == PDF_TOK_STRING)
- {
- lo = pdf_code_from_string(buf->scratch, buf->len);
- tok = pdf_lex(file, buf);
- if (tok == PDF_TOK_STRING)
- {
- hi = pdf_code_from_string(buf->scratch, buf->len);
- pdf_add_codespace(ctx, cmap, lo, hi, buf->len);
- }
- else break;
- }
-
- else break;
- }
-
- fz_throw(ctx, FZ_ERROR_GENERIC, "expected string or endcodespacerange");
-}
-
-static void
-pdf_parse_cid_range(fz_context *ctx, pdf_cmap *cmap, fz_stream *file, pdf_lexbuf *buf)
-{
- pdf_token tok;
- int lo, hi, dst;
-
- while (1)
- {
- tok = pdf_lex(file, buf);
-
- if (tok == PDF_TOK_KEYWORD && !strcmp(buf->scratch, "endcidrange"))
- return;
-
- else if (tok != PDF_TOK_STRING)
- fz_throw(ctx, FZ_ERROR_GENERIC, "expected string or endcidrange");
-
- lo = pdf_code_from_string(buf->scratch, buf->len);
-
- tok = pdf_lex(file, buf);
- if (tok != PDF_TOK_STRING)
- fz_throw(ctx, FZ_ERROR_GENERIC, "expected string");
-
- hi = pdf_code_from_string(buf->scratch, buf->len);
-
- tok = pdf_lex(file, buf);
- if (tok != PDF_TOK_INT)
- fz_throw(ctx, FZ_ERROR_GENERIC, "expected integer");
-
- dst = buf->i;
-
- pdf_map_range_to_range(ctx, cmap, lo, hi, dst);
- }
-}
-
-static void
-pdf_parse_cid_char(fz_context *ctx, pdf_cmap *cmap, fz_stream *file, pdf_lexbuf *buf)
-{
- pdf_token tok;
- int src, dst;
-
- while (1)
- {
- tok = pdf_lex(file, buf);
-
- if (tok == PDF_TOK_KEYWORD && !strcmp(buf->scratch, "endcidchar"))
- return;
-
- else if (tok != PDF_TOK_STRING)
- fz_throw(ctx, FZ_ERROR_GENERIC, "expected string or endcidchar");
-
- src = pdf_code_from_string(buf->scratch, buf->len);
-
- tok = pdf_lex(file, buf);
- if (tok != PDF_TOK_INT)
- fz_throw(ctx, FZ_ERROR_GENERIC, "expected integer");
-
- dst = buf->i;
-
- pdf_map_range_to_range(ctx, cmap, src, src, dst);
- }
-}
-
-static void
-pdf_parse_bf_range_array(fz_context *ctx, pdf_cmap *cmap, fz_stream *file, pdf_lexbuf *buf, int lo, int hi)
-{
- pdf_token tok;
- int dst[256];
- int i;
-
- while (1)
- {
- tok = pdf_lex(file, buf);
-
- if (tok == PDF_TOK_CLOSE_ARRAY)
- return;
-
- /* Note: does not handle [ /Name /Name ... ] */
- else if (tok != PDF_TOK_STRING)
- fz_throw(ctx, FZ_ERROR_GENERIC, "expected string or ]");
-
- if (buf->len / 2)
- {
- int len = fz_mini(buf->len / 2, nelem(dst));
- for (i = 0; i < len; i++)
- dst[i] = pdf_code_from_string(&buf->scratch[i * 2], 2);
-
- pdf_map_one_to_many(ctx, cmap, lo, dst, buf->len / 2);
- }
-
- lo ++;
- }
-}
-
-static void
-pdf_parse_bf_range(fz_context *ctx, pdf_cmap *cmap, fz_stream *file, pdf_lexbuf *buf)
-{
- pdf_token tok;
- int lo, hi, dst;
-
- while (1)
- {
- tok = pdf_lex(file, buf);
-
- if (tok == PDF_TOK_KEYWORD && !strcmp(buf->scratch, "endbfrange"))
- return;
-
- else if (tok != PDF_TOK_STRING)
- fz_throw(ctx, FZ_ERROR_GENERIC, "expected string or endbfrange");
-
- lo = pdf_code_from_string(buf->scratch, buf->len);
-
- tok = pdf_lex(file, buf);
- if (tok != PDF_TOK_STRING)
- fz_throw(ctx, FZ_ERROR_GENERIC, "expected string");
-
- hi = pdf_code_from_string(buf->scratch, buf->len);
- if (lo < 0 || lo > 65535 || hi < 0 || hi > 65535 || lo > hi)
- {
- fz_warn(ctx, "bf_range limits out of range in cmap %s", cmap->cmap_name);
- return;
- }
-
- tok = pdf_lex(file, buf);
-
- if (tok == PDF_TOK_STRING)
- {
- if (buf->len == 2)
- {
- dst = pdf_code_from_string(buf->scratch, buf->len);
- pdf_map_range_to_range(ctx, cmap, lo, hi, dst);
- }
- else
- {
- int dststr[256];
- int i;
-
- if (buf->len / 2)
- {
- int len = fz_mini(buf->len / 2, nelem(dststr));
- for (i = 0; i < len; i++)
- dststr[i] = pdf_code_from_string(&buf->scratch[i * 2], 2);
-
- while (lo <= hi)
- {
- dststr[i-1] ++;
- pdf_map_one_to_many(ctx, cmap, lo, dststr, i);
- lo ++;
- }
- }
- }
- }
-
- else if (tok == PDF_TOK_OPEN_ARRAY)
- {
- pdf_parse_bf_range_array(ctx, cmap, file, buf, lo, hi);
- }
-
- else
- {
- fz_throw(ctx, FZ_ERROR_GENERIC, "expected string or array or endbfrange");
- }
- }
-}
-
-static void
-pdf_parse_bf_char(fz_context *ctx, pdf_cmap *cmap, fz_stream *file, pdf_lexbuf *buf)
-{
- pdf_token tok;
- int dst[256];
- int src;
- int i;
-
- while (1)
- {
- tok = pdf_lex(file, buf);
-
- if (tok == PDF_TOK_KEYWORD && !strcmp(buf->scratch, "endbfchar"))
- return;
-
- else if (tok != PDF_TOK_STRING)
- fz_throw(ctx, FZ_ERROR_GENERIC, "expected string or endbfchar");
-
- src = pdf_code_from_string(buf->scratch, buf->len);
-
- tok = pdf_lex(file, buf);
- /* Note: does not handle /dstName */
- if (tok != PDF_TOK_STRING)
- fz_throw(ctx, FZ_ERROR_GENERIC, "expected string");
-
- if (buf->len / 2)
- {
- int len = fz_mini(buf->len / 2, nelem(dst));
- for (i = 0; i < len; i++)
- dst[i] = pdf_code_from_string(&buf->scratch[i * 2], 2);
- pdf_map_one_to_many(ctx, cmap, src, dst, i);
- }
- }
-}
-
-pdf_cmap *
-pdf_load_cmap(fz_context *ctx, fz_stream *file)
-{
- pdf_cmap *cmap;
- char key[64];
- pdf_lexbuf buf;
- pdf_token tok;
-
- pdf_lexbuf_init(ctx, &buf, PDF_LEXBUF_SMALL);
- cmap = pdf_new_cmap(ctx);
-
- strcpy(key, ".notdef");
-
- fz_try(ctx)
- {
- while (1)
- {
- tok = pdf_lex(file, &buf);
-
- if (tok == PDF_TOK_EOF)
- break;
-
- else if (tok == PDF_TOK_NAME)
- {
- if (!strcmp(buf.scratch, "CMapName"))
- pdf_parse_cmap_name(ctx, cmap, file, &buf);
- else if (!strcmp(buf.scratch, "WMode"))
- pdf_parse_wmode(ctx, cmap, file, &buf);
- else
- fz_strlcpy(key, buf.scratch, sizeof key);
- }
-
- else if (tok == PDF_TOK_KEYWORD)
- {
- if (!strcmp(buf.scratch, "endcmap"))
- break;
-
- else if (!strcmp(buf.scratch, "usecmap"))
- fz_strlcpy(cmap->usecmap_name, key, sizeof(cmap->usecmap_name));
-
- else if (!strcmp(buf.scratch, "begincodespacerange"))
- pdf_parse_codespace_range(ctx, cmap, file, &buf);
-
- else if (!strcmp(buf.scratch, "beginbfchar"))
- pdf_parse_bf_char(ctx, cmap, file, &buf);
-
- else if (!strcmp(buf.scratch, "begincidchar"))
- pdf_parse_cid_char(ctx, cmap, file, &buf);
-
- else if (!strcmp(buf.scratch, "beginbfrange"))
- pdf_parse_bf_range(ctx, cmap, file, &buf);
-
- else if (!strcmp(buf.scratch, "begincidrange"))
- pdf_parse_cid_range(ctx, cmap, file, &buf);
- }
-
- /* ignore everything else */
- }
-
- pdf_sort_cmap(ctx, cmap);
- }
- fz_always(ctx)
- {
- pdf_lexbuf_fin(&buf);
- }
- fz_catch(ctx)
- {
- pdf_drop_cmap(ctx, cmap);
- fz_rethrow_message(ctx, "syntaxerror in cmap");
- }
-
- return cmap;
-}
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