static astring *find_include_file(int srcrootlen, const astring *srcfile, const astring *filename)
{
include_path *curpath;
/* iterate over include paths and find the file */
for (curpath = incpaths; curpath != NULL; curpath = curpath->next)
{
astring *srcincpath = astring_dup(curpath->path);
core_file *testfile;
int lastsepindex = 0;
int sepindex;
/* a '.' include path is specially treated */
if (astring_cmpc(curpath->path, ".") == 0)
astring_cpysubstr(srcincpath, srcfile, 0, astring_rchr(srcfile, 0, PATH_SEPARATOR[0]));
/* append the filename piecemeal to account for directories */
while ((sepindex = astring_chr(filename, lastsepindex, '/')) != -1)
{
astring *pathpart = astring_dupsubstr(filename, lastsepindex, sepindex - lastsepindex);
/* handle .. by removing a chunk from the incpath */
if (astring_cmpc(pathpart, "..") == 0)
{
int sepindex_part = astring_rchr(srcincpath, 0, PATH_SEPARATOR[0]);
if (sepindex_part != -1)
astring_substr(srcincpath, 0, sepindex_part);
}
/* otherwise, append a path separator and the pathpart */
else
astring_cat(astring_catc(srcincpath, PATH_SEPARATOR), pathpart);
/* advance past the previous index */
lastsepindex = sepindex + 1;
/* free the path part we extracted */
astring_free(pathpart);
}
/* now append the filename */
astring_catsubstr(astring_catc(srcincpath, PATH_SEPARATOR), filename, lastsepindex, -1);
/* see if we can open it */
if (core_fopen(astring_c(srcincpath), OPEN_FLAG_READ, &testfile) == FILERR_NONE)
{
/* close the file */
core_fclose(testfile);
return srcincpath;
}
/* free our include path */
astring_free(srcincpath);
}
return NULL;
}
static astring *find_include_file(int srcrootlen, int dstrootlen, const astring *srcfile, const astring *dstfile, const astring *filename)
{
include_path *curpath;
/* iterate over include paths and find the file */
for (curpath = incpaths; curpath != NULL; curpath = curpath->next)
{
astring *srcincpath = astring_cat(astring_dupsubstr(srcfile, 0, srcrootlen + 1), curpath->path);
core_file *testfile;
int lastsepindex = 0;
int sepindex;
/* a '.' include path is specially treated */
if (astring_cmpc(curpath->path, ".") == 0)
astring_cpysubstr(srcincpath, srcfile, 0, astring_rchr(srcfile, 0, PATH_SEPARATOR[0]));
/* append the filename piecemeal to account for directories */
while ((sepindex = astring_chr(filename, lastsepindex, '/')) != -1)
{
astring *pathpart = astring_dupsubstr(filename, lastsepindex, sepindex - lastsepindex);
/* handle .. by removing a chunk from the incpath */
if (astring_cmpc(pathpart, "..") == 0)
{
sepindex = astring_rchr(srcincpath, 0, PATH_SEPARATOR[0]);
if (sepindex != -1)
astring_substr(srcincpath, 0, sepindex);
}
/* otherwise, append a path separator and the pathpart */
else
astring_cat(astring_catc(srcincpath, PATH_SEPARATOR), pathpart);
/* advance past the previous index */
lastsepindex = sepindex + 1;
/* free the path part we extracted */
astring_free(pathpart);
}
/* now append the filename */
astring_catsubstr(astring_catc(srcincpath, PATH_SEPARATOR), filename, lastsepindex, -1);
/* see if we can open it */
if (core_fopen(astring_c(srcincpath), OPEN_FLAG_READ, &testfile) == FILERR_NONE)
{
astring *tempfile = astring_alloc();
astring *tempinc = astring_alloc();
/* close the file */
core_fclose(testfile);
/* find the longest matching directory substring between the include and source file */
lastsepindex = 0;
while ((sepindex = astring_chr(srcincpath, lastsepindex, PATH_SEPARATOR[0])) != -1)
{
/* get substrings up to the current directory */
astring_cpysubstr(tempfile, srcfile, 0, sepindex);
astring_cpysubstr(tempinc, srcincpath, 0, sepindex);
/* if we don't match, stop */
if (astring_cmp(tempfile, tempinc) != 0)
break;
lastsepindex = sepindex + 1;
}
/* chop off the common parts of the paths */
astring_cpysubstr(tempfile, srcfile, lastsepindex, -1);
astring_replacechr(astring_substr(srcincpath, lastsepindex, -1), PATH_SEPARATOR[0], '/');
/* for each directory left in the filename, we need to prepend a "../" */
while ((sepindex = astring_chr(tempfile, 0, PATH_SEPARATOR[0])) != -1)
{
astring_substr(tempfile, sepindex + 1, -1);
astring_insc(srcincpath, 0, "../");
}
astring_catc(srcincpath, ".html");
/* free the strings and return the include path */
astring_free(tempfile);
astring_free(tempinc);
return srcincpath;
}
/* free our include path */
astring_free(srcincpath);
}
return NULL;
}