Split complex regexes to multiple lines in zend_vm_gen.php

As requested by Dmitry in GH-12461 for easier reviewing.

Author: iluuu1994

Zend/zend_vm_gen.php

@@ -2414,7 +2414,16 @@ function gen_vm($def, $skel) {
             strpos($line,"ZEND_VM_COLD_CONSTCONST_HANDLER(") === 0) {
           // Parsing opcode handler's definition
             if (preg_match(
-                    "/^ZEND_VM_(HOT_|INLINE_|HOT_OBJ_|HOT_SEND_|HOT_NOCONST_|HOT_NOCONSTCONST_|COLD_|COLD_CONST_|COLD_CONSTCONST_)?HANDLER\(\s*([0-9]+)\s*,\s*([A-Z_]+)\s*,\s*([A-Z_|]+)\s*,\s*([A-Z_|]+)\s*(,\s*([A-Z_|]+)\s*)?(,\s*SPEC\(([A-Z_|=,]+)\)\s*)?\)/",
+                    "/^
+                        ZEND_VM_(HOT_|INLINE_|HOT_OBJ_|HOT_SEND_|HOT_NOCONST_|HOT_NOCONSTCONST_|COLD_|COLD_CONST_|COLD_CONSTCONST_)?HANDLER\(
+                            \s*([0-9]+)\s*,
+                            \s*([A-Z_]+)\s*,
+                            \s*([A-Z_|]+)\s*,
+                            \s*([A-Z_|]+)\s*
+                            (,\s*([A-Z_|]+)\s*)?
+                            (,\s*SPEC\(([A-Z_|=,]+)\)\s*)?
+                        \)
+                    $/x",
                     $line,
                     $m) == 0) {
                 die("ERROR ($def:$lineno): Invalid ZEND_VM_HANDLER definition.\n");
@@ -2465,7 +2474,17 @@ function gen_vm($def, $skel) {
                    strpos($line,"ZEND_VM_HOT_OBJ_TYPE_SPEC_HANDLER(") === 0) {
           // Parsing opcode handler's definition
             if (preg_match(
-                    "/^ZEND_VM_(HOT_|INLINE_|HOT_OBJ_|HOT_SEND_|HOT_NOCONST_|HOT_NOCONSTCONST_)?TYPE_SPEC_HANDLER\(\s*([A-Z_|]+)\s*,\s*((?:[^(,]|\([^()]*|(?R)*\))*),\s*([A-Za-z_]+)\s*,\s*([A-Z_|]+)\s*,\s*([A-Z_|]+)\s*(,\s*([A-Z_|]+)\s*)?(,\s*SPEC\(([A-Z_|=,]+)\)\s*)?\)/",
+                    "/^
+                        ZEND_VM_(HOT_|INLINE_|HOT_OBJ_|HOT_SEND_|HOT_NOCONST_|HOT_NOCONSTCONST_)?TYPE_SPEC_HANDLER\(
+                            \s*([A-Z_|]+)\s*,
+                            \s*((?:[^(,]|\([^()]*|(?R)*\))*),
+                            \s*([A-Za-z_]+)\s*,
+                            \s*([A-Z_|]+)\s*,
+                            \s*([A-Z_|]+)\s*
+                            (,\s*([A-Z_|]+)\s*)?
+                            (,\s*SPEC\(([A-Z_|=,]+)\)\s*)?
+                        \)
+                    $/x",
                     $line,
                     $m) == 0) {
                 die("ERROR ($def:$lineno): Invalid ZEND_VM_TYPE_HANDLER_HANDLER definition.\n");
@@ -2513,7 +2532,15 @@ function gen_vm($def, $skel) {
                    strpos($line,"ZEND_VM_HOT_HELPER(") === 0) {
           // Parsing helper's definition
             if (preg_match(
-                    "/^ZEND_VM(_INLINE|_COLD|_HOT)?_HELPER\(\s*([A-Za-z_]+)\s*,\s*([A-Z_|]+)\s*,\s*([A-Z_|]+)\s*(?:,\s*SPEC\(([A-Z_|=,]+)\)\s*)?(?:,\s*([^)]*)\s*)?\)/",
+                    "/^
+                        ZEND_VM(_INLINE|_COLD|_HOT)?_HELPER\(
+                            \s*([A-Za-z_]+)\s*,
+                            \s*([A-Z_|]+)\s*,
+                            \s*([A-Z_|]+)\s*
+                            (?:,\s*SPEC\(([A-Z_|=,]+)\)\s*)?
+                            (?:,\s*([^)]*)\s*)?
+                        \)
+                    $/x",
                     $line,
                     $m) == 0) {
                 die("ERROR ($def:$lineno): Invalid ZEND_VM_HELPER definition.\n");