style: enforce GNU-style variable names

[Akim Demaille]

commit db8c1bbbfd12e2208cf90e61972f862ffceec25c
Author: Akim Demaille <akim.demaille@gmail.com>
Date:   Sun Jul 31 12:58:16 2022 +0200

    style: enforce GNU-style variable names
    
    * examples/c/glr/c++-types.y, tests/cxx-type.at (lineNum, colNum):
    Rename as...
    (line_num, col_num): these.

diff --git a/examples/c/glr/c++-types.y b/examples/c/glr/c++-types.y
index 07a2c700..ca592e27 100644
--- a/examples/c/glr/c++-types.y
+++ b/examples/c/glr/c++-types.y
@@ -144,8 +144,8 @@ FILE * input = NULL;
 yytoken_kind_t
 yylex (YYSTYPE *lval, YYLTYPE *lloc)
 {
-  static int lineNum = 1;
-  static int colNum = 0;
+  static int line_num = 1;
+  static int col_num = 0;
 
   while (1)
     {
@@ -157,20 +157,20 @@ yylex (YYSTYPE *lval, YYLTYPE *lloc)
         case EOF:
           return 0;
         case '\t':
-          colNum = (colNum + 7) & ~7;
+          col_num = (col_num + 7) & ~7;
           break;
         case ' ': case '\f':
-          colNum += 1;
+          col_num += 1;
           break;
         case '\n':
-          lineNum += 1;
-          colNum = 0;
+          line_num += 1;
+          col_num = 0;
           break;
         default:
           {
             yytoken_kind_t tok;
-            lloc->first_line = lloc->last_line = lineNum;
-            lloc->first_column = colNum;
+            lloc->first_line = lloc->last_line = line_num;
+            lloc->first_column = col_num;
             if (isalpha (c))
               {
                 char buffer[256];
@@ -179,7 +179,7 @@ yylex (YYSTYPE *lval, YYLTYPE *lloc)
                 do
                   {
                     buffer[i++] = (char) c;
-                    colNum += 1;
+                    col_num += 1;
                     assert (i != sizeof buffer - 1);
                     c = getc (input);
                   }
@@ -200,10 +200,10 @@ yylex (YYSTYPE *lval, YYLTYPE *lloc)
               }
             else
               {
-                colNum += 1;
+                col_num += 1;
                 tok = c;
               }
-            lloc->last_column = colNum;
+            lloc->last_column = col_num;
             return tok;
           }
         }
diff --git a/tests/cxx-type.at b/tests/cxx-type.at
index 4ebbf503..96315541 100644
--- a/tests/cxx-type.at
+++ b/tests/cxx-type.at
@@ -149,8 +149,8 @@ m4_define([_AT_TEST_GLR_CXXTYPES],
 
 ]AT_YYLEX_PROTOTYPE[
 {]AT_LOCATION_IF([[
-  static int lineNum = 1;
-  static int colNum = 0;
+  static int line_num = 1;
+  static int col_num = 0;
 ]])[
 #if YYPURE]AT_LOCATION_IF([[
 # undef yylloc
@@ -169,20 +169,20 @@ m4_define([_AT_TEST_GLR_CXXTYPES],
         case EOF:
           return 0;
         case '\t':]AT_LOCATION_IF([[
-          colNum = (colNum + 7) & ~7;]])[
+          col_num = (col_num + 7) & ~7;]])[
           break;
         case ' ': case '\f':]AT_LOCATION_IF([[
-          colNum += 1;]])[
+          col_num += 1;]])[
           break;
         case '\n':]AT_LOCATION_IF([[
-          lineNum += 1;
-          colNum = 0;]])[
+          line_num += 1;
+          col_num = 0;]])[
           break;
         default:
           {
             int tok;]AT_LOCATION_IF([[
-            yylloc.first_line = yylloc.last_line = lineNum;
-            yylloc.first_column = colNum;]])[
+            yylloc.first_line = yylloc.last_line = line_num;
+            yylloc.first_column = col_num;]])[
             if (isalpha (c))
               {
                 char buffer[256];
@@ -191,7 +191,7 @@ m4_define([_AT_TEST_GLR_CXXTYPES],
                 do
                   {
                     buffer[i++] = YY_CAST (char, c);]AT_LOCATION_IF([[
-                    colNum += 1;]])[
+                    col_num += 1;]])[
                     assert (i != sizeof buffer - 1);
                     c = getchar ();
                   }
@@ -204,11 +204,11 @@ m4_define([_AT_TEST_GLR_CXXTYPES],
               }
             else
               {]AT_LOCATION_IF([[
-                colNum += 1;]])[
+                col_num += 1;]])[
                 tok = c;
                 yylval = YY_NULLPTR;
               }]AT_LOCATION_IF([[
-            yylloc.last_column = colNum;]])[
+            yylloc.last_column = col_num;]])[
             return tok;
           }
         }