X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=scripts%2Fgen_switch_utf8.php;fp=scripts%2Fgen_switch_utf8.php;h=242450a2391e646dc68a17a3599f40aea9fad639;hb=7c241598f1c4ad4da6ff031f59aac109ede4f31e;hp=0000000000000000000000000000000000000000;hpb=e609650b297eb4b56577a7430a6eb40cd858339b;p=m6w6%2Fext-http

diff --git a/scripts/gen_switch_utf8.php b/scripts/gen_switch_utf8.php
new file mode 100755
index 0000000..242450a
--- /dev/null
+++ b/scripts/gen_switch_utf8.php
@@ -0,0 +1,99 @@
+#!/usr/bin/env php
+<?php
+
+error_reporting(E_ALL);
+set_error_handler(function($c, $e, $f, $l) {
+	throw new Exception("$e in $f on line $l");
+});
+
+$i18n = $argc >= 2 ? $argv[1] : "/usr/share/i18n/locales/i18n";
+
+$b = 10;
+
+$f = fopen($i18n, "r");
+$c = false;
+$a = false;
+
+ob_start(null, 0xfffff);
+while (!feof($f)) {
+	$line = fgets($f);
+	if (!$c && $line !== "LC_CTYPE\n") {
+		continue;
+	}
+	$c = true;
+	if ($line === "END LC_CTYPE\n") {
+		break;
+	}
+	switch($line{0}) {
+	case "%":
+		break;
+	case "\n":
+		if ($a) {
+			break 2;
+		}
+		break;
+	case " ":
+		if ($a) {
+			foreach (explode(";", trim($line, "\n/ ;")) as $ranges) {
+				$range = explode("..", $ranges);
+				$step = 0;
+				$end = 0;
+				switch (count($range)) {
+				case 3:
+					list($sstart, $sstep, $send) = $range;
+					sscanf($sstart, "<U%X>", $start);
+					sscanf($sstep, "(%d)", $step);
+					sscanf($send, "<U%X>", $end);
+
+					break;
+				case 2:
+					list($sstart, $send) = $range;
+					$step = 1;
+					sscanf($sstart, "<U%X>", $start);
+					sscanf($send, "<U%X>", $end);
+					break;
+				case 1:
+					list($sstart) = $range;
+					sscanf($sstart, "<U%X>", $start);
+					break;
+				}
+				$r[$start >> $b][]=[$start,$end,$step];
+			}
+		}
+		break;
+	default:
+		if ($a) {
+			break 2;
+		} elseif ($line === "alpha /\n") {
+			$a = true;
+		}
+		break;
+	}
+}
+
+function sp($sp, $ch = " ") { return str_repeat($ch, $sp); }
+printf("switch (ch >> %d) {\n", $b);
+foreach ($r as $sw => $specs) {
+	printf("case 0x%08X:\n", $sw);
+	$sp = 1;
+	foreach ($specs as list($start, $end, $step)) {
+		if ($end) {
+			if ($step > 1) {
+				die("\nUNEXPECTED: step>1\n");
+				printf("\tfor (i=0x%08X; i <= 0x%08X; i+= %d) { if (i == ch) return 1; }\n", $start, $end, $step);
+			} else {
+				//printf(" if (ch >= 0x%08X && ch <= 0x%08X) return 1;\n", $start, $end);
+				printf("%sif (ch >= 0x%08X) {\n", sp($sp), $start);
+				printf("%sif (ch <= 0x%08X) return 1;\n", sp(++$sp), $end);
+			}
+		} else {
+			printf("%sif (ch == 0x%08X) return 1;\n", sp($sp), $start);
+		}
+	}
+	printf(" %s\n break;\n", sp(--$sp, "}"));
+}
+printf("}\n");
+
+file_put_contents("php_http_utf8.h",
+	preg_replace('/(\/\* BEGIN::UTF8SWITCH \*\/\n).*(\n\s*\/\* END::UTF8SWITCH \*\/)/s', '$1'. ob_get_contents() .'$2',
+		file_get_contents("php_http_utf8.h")));