diff options
Diffstat (limited to 'src/libexecline/exlsn_define.c')
-rw-r--r-- | src/libexecline/exlsn_define.c | 50 |
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 ; +} |