summaryrefslogtreecommitdiff
path: root/src/libexecline/exlsn_define.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/libexecline/exlsn_define.c')
-rw-r--r--src/libexecline/exlsn_define.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/src/libexecline/exlsn_define.c b/src/libexecline/exlsn_define.c
new file mode 100644
index 0000000..3abe516
--- /dev/null
+++ b/src/libexecline/exlsn_define.c
@@ -0,0 +1,50 @@
+/* ISC license. */
+
+#include <skalibs/bytestr.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/stralloc.h>
+#include <skalibs/genalloc.h>
+#include <execline/execline.h>
+#include "exlsn.h"
+
+int exlsn_define (int argc, char const **argv, char const *const *envp, exlsn_t *info)
+{
+ eltransforminfo_t si = ELTRANSFORMINFO_ZERO ;
+ subgetopt_t localopt = SUBGETOPT_ZERO ;
+ elsubst_t blah ;
+ blah.var = info->vars.len ;
+ blah.value = info->values.len ;
+ for (;;)
+ {
+ register int opt = subgetopt_r(argc, argv, "nsCcd:", &localopt) ;
+ if (opt < 0) break ;
+ switch (opt)
+ {
+ case 'n' : si.chomp = 1 ; break ;
+ case 's' : si.split = 1 ; break ;
+ case 'C' : si.crunch = 1 ; break ;
+ case 'c' : si.crunch = 0 ; break ;
+ case 'd' : si.delim = localopt.arg ; break ;
+ default : return -3 ;
+ }
+ }
+ argc -= localopt.ind ; argv += localopt.ind ;
+
+ if (argc < 2) return -3 ;
+ if (!*argv[0] || el_vardupl(argv[0], info->vars.s, info->vars.len)) return -2 ;
+ if (!stralloc_catb(&info->vars, argv[0], str_len(argv[0]) + 1)) return -1 ;
+ if (!stralloc_cats(&info->values, argv[1])) goto err ;
+ {
+ register int r = el_transform(&info->values, blah.value, &si) ;
+ if (r < 0) goto err ;
+ blah.n = r ;
+ }
+ if (!genalloc_append(elsubst_t, &info->data, &blah)) goto err ;
+ (void)envp ;
+ return localopt.ind + 2 ;
+
+ err:
+ info->vars.len = blah.var ;
+ info->values.len = blah.value ;
+ return -1 ;
+}