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Accepted upper case letters

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Introduced isalpha() from <ctype.h> to check if a character belongs to the alphabet. Previously, only lower case letters were allowed.
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giacomo-b
2021-03-03 20:08:39 +01:00
committed by GitHub
parent 779052b6ba
commit 1ca3587ffa
1 changed files with 3 additions and 2 deletions
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tinyexpr.c
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@@ -39,6 +39,7 @@ For log = natural log uncomment the next line. */
#include <math.h> #include <math.h>
#include <string.h> #include <string.h>
#include <stdio.h> #include <stdio.h>
#include <ctype.h>
#include <limits.h> #include <limits.h>
#ifndef NAN #ifndef NAN
@@ -245,8 +246,8 @@ void next_token(state *s) {
if (s->next[0] >= 'a' && s->next[0] <= 'z') { if (s->next[0] >= 'a' && s->next[0] <= 'z') {
const char *start; const char *start;
start = s->next; start = s->next;
while ((s->next[0] >= 'a' && s->next[0] <= 'z') || (s->next[0] >= '0' && s->next[0] <= '9') || (s->next[0] == '_')) s->next++; while (isalpha(s->next[0]) || isdigit(s->next[0]) || (s->next[0] == '_')) s->next++;
const te_variable *var = find_lookup(s, start, s->next - start); const te_variable *var = find_lookup(s, start, s->next - start);
if (!var) var = find_builtin(start, s->next - start); if (!var) var = find_builtin(start, s->next - start);