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examples: diff: parse correct types for line-diffopts

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This commit is contained in:
Patrick Steinhardt 2016-08-16 11:01:09 +02:00
parent 7314da1055
commit 5c2a8361d7
3 changed files with 31 additions and 3 deletions
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19
examples/common.c
View File

@ -146,6 +146,25 @@ int match_uint16_arg(
return 1;
}
int match_uint32_arg(
uint32_t *out, struct args_info *args, const char *opt)
{
const char *found = match_numeric_arg(args, opt);
uint16_t val;
char *endptr = NULL;
if (!found)
return 0;
val = (uint32_t)strtoul(found, &endptr, 0);
if (!endptr || *endptr != '\0')
fatal("expected number after argument", opt);
if (out)
*out = val;
return 1;
}
static int match_int_internal(
int *out, const char *str, int allow_negative, const char *opt)
{

9
examples/common.h
View File

@ -72,6 +72,15 @@ extern int match_str_arg(
extern int match_uint16_arg(
uint16_t *out, struct args_info *args, const char *opt);
/**
* Check current `args` entry against `opt` string parsing as uint32. If
* `opt` matches exactly, take the next arg as a uint16_t value; if `opt`
* is a prefix (equal sign optional), take the remainder of the arg as a
* uint32_t value; otherwise return 0.
*/
extern int match_uint32_arg(
uint32_t *out, struct args_info *args, const char *opt);
/**
* Check current `args` entry against `opt` string parsing as int. If
* `opt` matches exactly, take the next arg as an int value; if it matches

6
examples/diff.c
View File

@ -293,11 +293,11 @@ static void parse_opts(struct opts *o, int argc, char *argv[])
else if (is_prefixed(a, "-B") || is_prefixed(a, "--break-rewrites"))
/* TODO: parse thresholds */
o->findopts.flags |= GIT_DIFF_FIND_REWRITES;
else if (!match_uint16_arg(
else if (!match_uint32_arg(
&o->diffopts.context_lines, &args, "-U") &&
!match_uint16_arg(
!match_uint32_arg(
&o->diffopts.context_lines, &args, "--unified") &&
!match_uint16_arg(
!match_uint32_arg(
&o->diffopts.interhunk_lines, &args, "--inter-hunk-context") &&
!match_uint16_arg(
&o->diffopts.id_abbrev, &args, "--abbrev") &&