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- /* ourpaths.c: path searching. */
-
- #include "config.h"
-
- #include <kpathsea/cnf.h>
- #include <kpathsea/default.h>
- #include <kpathsea/expand.h>
- #include <kpathsea/fontmap.h>
- #include <kpathsea/paths.h>
- #include <kpathsea/pathsearch.h>
- #include <kpathsea/tex-file.h>
-
- /* `path_dirs' is initialized in `setpaths', to a null-terminated array
- of directories to search for. */
- static const_string path_dirs[LAST_PATH];
-
-
- /* This sets up the paths, by either copying from an environment variable
- or using the default path, which is defined as a preprocessor symbol
- (with the same name as the environment variable) in `site.h'. The
- parameter PATH_BITS is a logical or of the paths we need to set. */
-
- extern void
- setpaths (path_bits)
- int path_bits;
- {
- if (path_bits & BIBINPUTPATHBIT)
- path_dirs[BIBINPUTPATH] = kpse_init_format (kpse_bib_format);
-
- if (path_bits & BSTINPUTPATHBIT)
- path_dirs[BSTINPUTPATH] = kpse_init_format (kpse_bst_format);
-
- if (path_bits & GFFILEPATHBIT)
- path_dirs[GFFILEPATH] = kpse_init_format (kpse_gf_format);
-
- if (path_bits & MFBASEPATHBIT)
- path_dirs[MFBASEPATH] = kpse_init_format (kpse_base_format);
-
- if (path_bits & MFINPUTPATHBIT)
- path_dirs[MFINPUTPATH] = kpse_init_format (kpse_mf_format);
-
- if (path_bits & MFPOOLPATHBIT)
- path_dirs[MFPOOLPATH] = kpse_init_format (kpse_mfpool_format);
-
- if (path_bits & PKFILEPATHBIT)
- path_dirs[PKFILEPATH] = kpse_init_format (kpse_pk_format);
-
- if (path_bits & TEXFORMATPATHBIT)
- path_dirs[TEXFORMATPATH] = kpse_init_format (kpse_fmt_format);
-
- if (path_bits & TEXINPUTPATHBIT)
- path_dirs[TEXINPUTPATH] = kpse_init_format (kpse_tex_format);
-
- if (path_bits & TEXPOOLPATHBIT)
- path_dirs[TEXPOOLPATH] = kpse_init_format (kpse_texpool_format);
-
- if (path_bits & TFMFILEPATHBIT)
- path_dirs[TFMFILEPATH] = kpse_init_format (kpse_tfm_format);
-
- if (path_bits & VFFILEPATHBIT)
- path_dirs[VFFILEPATH] = kpse_init_format (kpse_vf_format);
- }
-
- /* Look for NAME, a Pascal string, in the colon-separated list of
- directories given by `path_dirs[PATH_INDEX]'. If the search is
- successful, leave the full pathname in NAME (which therefore must
- have enough room for such a pathname), padded with blanks.
- Otherwise, or if NAME is an absolute or relative pathname, just leave
- it alone. */
-
- boolean
- testreadaccess (name, path_index)
- string name;
- int path_index;
- {
- string found;
- const_string path = path_dirs[path_index];
-
- make_c_string (&name);
-
- /* Look for it. Don't use the kpse_find_glyph stuff, since we don't
- have the dpi available separately, and anyway we don't care about
- having pktogf run MakeTeXPK, etc. */
- found = kpse_path_search (path, name, true);
-
- /* If we didn't find it, and we're looking for a font, maybe it's
- an alias defined in a mapping file. This duplicates most of
- `try_fontmap' in `kpathsea/tex-glyph.c', but the differences are
- substantial enough that it doesn't seem worth combining. */
- if (!found && (path_index == TFMFILEPATH || path_index == GFFILEPATH
- || path_index == PKFILEPATH))
- {
- string *mapped_names;
- static hash_table_type fontmap = { NULL, 0 };
-
- /* Fault in the mapping if necessary. */
- if (fontmap.size == 0)
- fontmap = map_create (path);
-
- /* Now look for our filename in the mapping. */
- mapped_names = map_lookup (fontmap, name);
- if (mapped_names)
- {
- string mapped_name;
- while ((mapped_name = *mapped_names++) && !found)
- {
- found = kpse_path_search (path, mapped_name, true);
- }
- }
- }
-
- /* If we found it somewhere, save it. */
- if (found)
- strcpy (name, found);
-
- make_pascal_string (&name);
-
- return found != NULL;
- }
-