1 files changed, 201 insertions, 0 deletions
diff --git a/Podium/p_string.c b/Podium/p_string.c
new file mode 100644
index 0000000..73cb0ea
--- /dev/null
+++ b/Podium/p_string.c
@@ -0,0 +1,201 @@
+PODEF char*
+p_find_char(char *buf, char needle)
+{
+    while (buf && *buf != needle) buf++;
+    return buf;
+}
+
+PODEF bool
+p_strcmp(const char *a, const char *b)
+{
+    if (p_strlen(a) != p_strlen(b))
+        return false;
+
+    while (a && b && *a != '\0') {
+        if (*(a++) != *(b++)) return false;
+    }
+
+    return true;
+}
+
+PODEF int
+p_strlen(const char *a)
+{
+    int i = 0;
+    while (*a++ != '\0') i++;
+    return i;
+}
+
+PODEF int
+p_strtoi(const char *str)
+{
+    int res = 0;
+
+    while (*str) {
+        if (*str >= '0' && *str <= '9') {
+            res = res * 10 + (*str - '0');
+        } else {
+            return res;
+        }
+        str++;
+    }
+
+    return res;
+}
+
+PODEF char*
+p_strtok(const char *str, char c)
+{
+    while (*str != c && *str++ != '\0');
+    return (*str == c) ? (char*) ++str : 0;
+}
+
+PODEF P_StringView
+p_strview(const char *cstr) 
+{
+    P_StringView sv = {0};
+    sv.cstr = cstr;
+    sv.len = p_strlen(cstr);
+    return sv;
+}
+
+PODEF void
+p_strview_chop_left(P_StringView *sv, u32 n) 
+{
+    if (n > sv->len) n = sv->len;
+    sv->cstr += n;
+    sv->len  -= n;
+}
+
+PODEF void
+p_strview_chop_right(P_StringView *sv, u32 n) 
+{
+    if (n > sv->len) n = sv->len;
+    sv->len  -= n;
+}
+
+PODEF P_StringView
+p_strview_chop_delim(P_StringView *sv, char delim) 
+{
+    u32 i = 0;
+    while (i < sv->len && sv->cstr[i] != delim) {
+        i++;
+    }
+
+    P_StringView tok;
+    if (i < sv->len) {
+        tok.cstr = sv->cstr;
+        tok.len  = i; 
+        p_strview_chop_left(sv, i + 1);
+        return tok;
+    }
+
+    tok = *sv;
+    p_strview_chop_left(sv, sv->len);
+    return tok;
+}
+
+PODEF P_StringView
+p_strview_chop_type(P_StringView *sv, int(*istype)(int))
+{
+    u32 i = 0;
+    while (i < sv->len && istype(sv->cstr[i])) {
+        i++;
+    }
+
+    P_StringView tok;
+    if (i < sv->len) {
+        tok.cstr = sv->cstr;
+        tok.len  = i; 
+        p_strview_chop_left(sv, i + 1);
+        return tok;
+    }
+
+    tok = *sv;
+    p_strview_chop_left(sv, sv->len);
+    return tok;
+}
+
+
+PODEF void
+p_strview_trim_left(P_StringView *sv) 
+{
+    while (sv->len > 0 && p_is_space(sv->cstr[0])) {
+        p_strview_chop_left(sv, 1);
+    }
+}
+
+PODEF void
+p_strview_trim_right(P_StringView *sv) 
+{
+    while (sv->len > 0 && p_is_space(sv->cstr[sv->len-1])) {
+        p_strview_chop_right(sv, 1);
+    }
+}
+
+PODEF void
+p_strview_trim(P_StringView *sv) 
+{
+    p_strview_trim_left(sv);
+    p_strview_trim_right(sv);
+}
+
+PODEF int 
+p_is_space(int c) 
+{
+    /* Checks for: space, form feed (\f), line feed (\n), 
+     * carriage return (\r), horizontal tab (\t), vertical tab (\v) */
+    return (c == ' ' || (c >= '\t' && c <= '\r'));
+}
+
+PODEF int 
+p_is_digit(int c) 
+{
+    return (c >= '0' && c <= '9');
+}
+
+PODEF int 
+p_is_alpha(int c) 
+{
+    return ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'));
+}
+
+PODEF int 
+p_is_alnum(int c) 
+{
+    return (p_is_alpha(c) || p_is_digit(c));
+}
+
+PODEF int 
+p_is_hex(int c) 
+{
+    return (p_is_digit(c) || 
+           (c >= 'a' && c <= 'f') || 
+           (c >= 'A' && c <= 'F'));
+}
+
+PODEF int 
+p_is_upper(int c) 
+{
+    return (c >= 'A' && c <= 'Z');
+}
+
+PODEF int 
+p_is_lower(int c) 
+{
+    return (c >= 'a' && c <= 'z');
+}
+
+PODEF int 
+p_to_lower(int c) 
+{
+    if (p_is_upper(c)) return (c + ('a' - 'A'));
+    return c;
+}
+
+PODEF int 
+p_to_upper(int c) 
+{
+    if (p_is_lower(c)) return (c - ('a' - 'A'));
+    return c;
+}