Update re2

third_party/re2/re2/perl_groups.cc

 // GENERATED BY make_perl_groups.pl; DO NOT EDIT.
 // make_perl_groups.pl >perl_groups.cc
 
 #include "re2/unicode_groups.h"
 
 namespace re2 {
 
-static URange16 code1[] = {  /* \d */
+static const URange16 code1[] = {  /* \d */
         { 0x30, 0x39 },
 };
-static URange16 code2[] = {  /* \s */
+static const URange16 code2[] = {  /* \s */
         { 0x9, 0xa },
         { 0xc, 0xd },
         { 0x20, 0x20 },
 };
-static URange16 code3[] = {  /* \w */
+static const URange16 code3[] = {  /* \w */
         { 0x30, 0x39 },
         { 0x41, 0x5a },
         { 0x5f, 0x5f },
         { 0x61, 0x7a },
 };
-UGroup perl_groups[] = {
+const UGroup perl_groups[] = {
         { "\\d", +1, code1, 1 },
         { "\\D", -1, code1, 1 },
         { "\\s", +1, code2, 3 },
         { "\\S", -1, code2, 3 },
         { "\\w", +1, code3, 4 },
         { "\\W", -1, code3, 4 },
 };
-int num_perl_groups = 6;
-static URange16 code4[] = {  /* [:alnum:] */
+const int num_perl_groups = 6;
+static const URange16 code4[] = {  /* [:alnum:] */
         { 0x30, 0x39 },
         { 0x41, 0x5a },
         { 0x61, 0x7a },
 };
-static URange16 code5[] = {  /* [:alpha:] */
+static const URange16 code5[] = {  /* [:alpha:] */
         { 0x41, 0x5a },
         { 0x61, 0x7a },
 };
-static URange16 code6[] = {  /* [:ascii:] */
+static const URange16 code6[] = {  /* [:ascii:] */
         { 0x0, 0x7f },
 };
-static URange16 code7[] = {  /* [:blank:] */
+static const URange16 code7[] = {  /* [:blank:] */
         { 0x9, 0x9 },
         { 0x20, 0x20 },
 };
-static URange16 code8[] = {  /* [:cntrl:] */
+static const URange16 code8[] = {  /* [:cntrl:] */
         { 0x0, 0x1f },
         { 0x7f, 0x7f },
 };
-static URange16 code9[] = {  /* [:digit:] */
+static const URange16 code9[] = {  /* [:digit:] */
         { 0x30, 0x39 },
 };
-static URange16 code10[] = {  /* [:graph:] */
+static const URange16 code10[] = {  /* [:graph:] */
         { 0x21, 0x7e },
 };
-static URange16 code11[] = {  /* [:lower:] */
+static const URange16 code11[] = {  /* [:lower:] */
         { 0x61, 0x7a },
 };
-static URange16 code12[] = {  /* [:print:] */
+static const URange16 code12[] = {  /* [:print:] */
         { 0x20, 0x7e },
 };
-static URange16 code13[] = {  /* [:punct:] */
+static const URange16 code13[] = {  /* [:punct:] */
         { 0x21, 0x2f },
         { 0x3a, 0x40 },
         { 0x5b, 0x60 },
         { 0x7b, 0x7e },
 };
-static URange16 code14[] = {  /* [:space:] */
+static const URange16 code14[] = {  /* [:space:] */
         { 0x9, 0xd },
         { 0x20, 0x20 },
 };
-static URange16 code15[] = {  /* [:upper:] */
+static const URange16 code15[] = {  /* [:upper:] */
         { 0x41, 0x5a },
 };
-static URange16 code16[] = {  /* [:word:] */
+static const URange16 code16[] = {  /* [:word:] */
         { 0x30, 0x39 },
         { 0x41, 0x5a },
         { 0x5f, 0x5f },
         { 0x61, 0x7a },
 };
-static URange16 code17[] = {  /* [:xdigit:] */
+static const URange16 code17[] = {  /* [:xdigit:] */
         { 0x30, 0x39 },
         { 0x41, 0x46 },
         { 0x61, 0x66 },
 };
-UGroup posix_groups[] = {
+const UGroup posix_groups[] = {
         { "[:alnum:]", +1, code4, 3 },
         { "[:^alnum:]", -1, code4, 3 },
         { "[:alpha:]", +1, code5, 2 },
         { "[:^alpha:]", -1, code5, 2 },
         { "[:ascii:]", +1, code6, 1 },
         { "[:^ascii:]", -1, code6, 1 },
         { "[:blank:]", +1, code7, 2 },
         { "[:^blank:]", -1, code7, 2 },
         { "[:cntrl:]", +1, code8, 2 },
         { "[:^cntrl:]", -1, code8, 2 },
         { "[:digit:]", +1, code9, 1 },
         { "[:^digit:]", -1, code9, 1 },
         { "[:graph:]", +1, code10, 1 },
         { "[:^graph:]", -1, code10, 1 },
         { "[:lower:]", +1, code11, 1 },
         { "[:^lower:]", -1, code11, 1 },
         { "[:print:]", +1, code12, 1 },
         { "[:^print:]", -1, code12, 1 },
         { "[:punct:]", +1, code13, 4 },
         { "[:^punct:]", -1, code13, 4 },
         { "[:space:]", +1, code14, 2 },
         { "[:^space:]", -1, code14, 2 },
         { "[:upper:]", +1, code15, 1 },
         { "[:^upper:]", -1, code15, 1 },
         { "[:word:]", +1, code16, 4 },
         { "[:^word:]", -1, code16, 4 },
         { "[:xdigit:]", +1, code17, 3 },
         { "[:^xdigit:]", -1, code17, 3 },
 };
-int num_posix_groups = 28;
+const int num_posix_groups = 28;
 
 }  // namespace re2