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/* Written by K.Asayayam Sep. 1995 */
#ifdef KPATHSEA
#include "kp.h"
/* C library functions. */
extern char *getenv();
/* Functions in kpathsea lib. */
extern kpse_set_progname();
extern char *kpse_cnf_get();
extern char *kpse_path_expand();
extern char *kpse_expand_default();
extern char *kpse_path_search();
extern char *find_suffix();
extern char *concat3();
#ifdef KPATHSEA3
extern char *kpse_var_value();
#endif
int
KP_init(prog)
char *prog;
{
kpse_set_progname(prog);
return 0;
}
#ifdef KPATHSEA3
/* KP_get_value(char *var,char *def_val)
ARGUMENTS:
char *var: name of variable.
char *def_val: default value.
*/
char *KP_get_value(var,def_val)
char *var,*def_val;
{
char *p = kpse_var_value(var);
return p ? p : def_val;
}
#else
/* KP_get_value(char *env,char *cnf,char *def_val)
ARGUMENTS:
char *env: name of environment variable.
char *cnf: name of variable in `texmf.cnf'.
char *def_val: default value.
*/
char *KP_get_value(env,cnf,def_val)
char *env,*cnf,*def_val;
{
char *val;
char *cnf_val,*env_val;
val = def_val ? def_val : "";
cnf_val = kpse_cnf_get(cnf);
env_val = getenv(env);
if (cnf_val) val = kpse_expand_default(cnf_val,val);
if (env_val) val = kpse_expand_default(env_val,val);
return val[0] ? val : ((cnf_val || env_val) ? val : (char *)0);
}
#endif
/* KP_get_path(char *var, char *def_val)
ARGUMENTS:
char *var: name of variable.
char *def_val: default value.
*/
char *KP_get_path(var,def_val)
char *var,*def_val;
{
char avar[50];
char *p;
strcpy(avar, "${");
strcat(avar, var);
strcat(avar, "}");
p = kpse_path_expand(avar);
return (p && *p) ? p : def_val;
}
/*
*/
int KP_entry_filetype(info)
KpathseaSupportInfo *info;
{
#ifdef KPATHSEA3
info->path = KP_get_path(info->var_name,info->path);
#else
char *path;
path = KP_get_value(info->var_name,info->var_name,info->path);
info->path = kpse_path_expand(path);
#endif
return 0;
}
/* KP_find_file(KpathseaSupportInfo *info, char *name)
ARGUMENTS:
KpathseaSupportInfo *info: Informations about the type of files.
char *name: Name of file.
*/
char *KP_find_file(info,name)
KpathseaSupportInfo *info;
char *name;
{
char *ret;
ret = kpse_path_search(info->path,name,1);
if (!ret && info->suffix && !find_suffix(name)) {
char *suff_name;
suff_name = concat3(name,".",info->suffix);
ret = kpse_path_search(info->path,suff_name,1);
free(suff_name);
}
return ret ? ret : name;
}
#else
int KP_dummy_variable;
#endif
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