xs_po.h new file.

1 files changed, 86 insertions, 0 deletions

diff --git a/xs_po.h b/xs_po.h
new file mode 100644
index 0000000..c6feec9
--- /dev/null
+++ b/xs_po.h
@@ -0,0 +1,86 @@
+/* copyright (c) 2025 grunfink et al. / MIT license */
+
+#ifndef _XS_PO_H
+
+#define _XS_PO_H
+
+xs_dict *xs_po_to_dict(const char *fn);
+
+#ifdef XS_IMPLEMENTATION
+
+xs_dict *xs_po_to_dict(const char *fn)
+/* converts a PO file to a dict */
+{
+    xs_dict *d = NULL;
+    FILE *f;
+
+    if ((f = fopen(fn, "r")) != NULL) {
+        d = xs_dict_new();
+
+        xs *k = NULL;
+        xs *v = NULL;
+        enum { IN_NONE, IN_K, IN_V } mode = IN_NONE;
+
+        while (!feof(f)) {
+            xs *l = xs_strip_i(xs_readline(f));
+
+            /* discard empty lines and comments */
+            if (*l == '\0' || *l == '#')
+                continue;
+
+            if (xs_startswith(l, "msgid ")) {
+                if (mode == IN_V) {
+                    /* flush */
+                    if (xs_is_string(k) && xs_is_string(v) && *v)
+                        d = xs_dict_set(d, k, v);
+
+                    k = xs_free(k);
+                    v = xs_free(v);
+                }
+
+                l = xs_replace_i(l, "msgid ", "");
+                mode = IN_K;
+
+                k = xs_str_new(NULL);
+            }
+            else
+            if (xs_startswith(l, "msgstr ")) {
+                if (mode != IN_K)
+                    break;
+
+                l = xs_replace_i(l, "msgstr ", "");
+                mode = IN_V;
+
+                v = xs_str_new(NULL);
+            }
+
+            l = xs_replace_i(l, "\\n", "\n");
+            l = xs_strip_chars_i(l, "\"");
+
+            switch (mode) {
+            case IN_K:
+                k = xs_str_cat(k, l);
+                break;
+
+            case IN_V:
+                v = xs_str_cat(v, l);
+                break;
+
+            case IN_NONE:
+                break;
+            }
+        }
+
+        /* final flush */
+        if (xs_is_string(k) && xs_is_string(v) && *v)
+            d = xs_dict_set(d, k, v);
+
+        fclose(f);
+    }
+
+    return d;
+}
+
+#endif /* XS_IMPLEMENTATION */
+
+#endif /* XS_PO_H */