awk: rename TC_SEQSTART/END to L/RPAREN, no code changes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 47 insertions, 47 deletions

diff --git a/editors/awk.c b/editors/awk.c
index 9a3b63df6..d31b97d86 100644
--- a/editors/awk.c
+++ b/editors/awk.c
@@ -207,48 +207,48 @@ typedef struct tsplitter_s {
 } tsplitter;
 
 /* simple token classes */
-/* Order and hex values are very important!!!  See next_token() */
-#define TC_SEQSTART     (1 << 0)                /* ( */
-#define TC_SEQTERM      (1 << 1)                /* ) */
+/* order and hex values are very important!!!  See next_token() */
+#define TC_LPAREN       (1 << 0)                /* ( */
+#define TC_RPAREN       (1 << 1)                /* ) */
 #define TC_REGEXP       (1 << 2)                /* /.../ */
 #define TC_OUTRDR       (1 << 3)                /* | > >> */
 #define TC_UOPPOST      (1 << 4)                /* unary postfix operator ++ -- */
 #define TC_UOPPRE1      (1 << 5)                /* unary prefix operator ++ -- $ */
 #define TC_BINOPX       (1 << 6)                /* two-opnd operator */
-#define TC_IN           (1 << 7)
-#define TC_COMMA        (1 << 8)
-#define TC_PIPE         (1 << 9)                /* input redirection pipe */
+#define TC_IN           (1 << 7)                /* 'in' */
+#define TC_COMMA        (1 << 8)                /* , */
+#define TC_PIPE         (1 << 9)                /* input redirection pipe | */
 #define TC_UOPPRE2      (1 << 10)               /* unary prefix operator + - ! */
 #define TC_ARRTERM      (1 << 11)               /* ] */
 #define TC_GRPSTART     (1 << 12)               /* { */
 #define TC_GRPTERM      (1 << 13)               /* } */
-#define TC_SEMICOL      (1 << 14)
+#define TC_SEMICOL      (1 << 14)               /* ; */
 #define TC_NEWLINE      (1 << 15)
 #define TC_STATX        (1 << 16)               /* ctl statement (for, next...) */
-#define TC_WHILE        (1 << 17)
-#define TC_ELSE         (1 << 18)
+#define TC_WHILE        (1 << 17)               /* 'while' */
+#define TC_ELSE         (1 << 18)               /* 'else' */
 #define TC_BUILTIN      (1 << 19)
 /* This costs ~50 bytes of code.
  * A separate class to support deprecated "length" form. If we don't need that
  * (i.e. if we demand that only "length()" with () is valid), then TC_LENGTH
  * can be merged with TC_BUILTIN:
  */
-#define TC_LENGTH       (1 << 20)
-#define TC_GETLINE      (1 << 21)
+#define TC_LENGTH       (1 << 20)               /* 'length' */
+#define TC_GETLINE      (1 << 21)               /* 'getline' */
 #define TC_FUNCDECL     (1 << 22)               /* 'function' 'func' */
-#define TC_BEGIN        (1 << 23)
-#define TC_END          (1 << 24)
+#define TC_BEGIN        (1 << 23)               /* 'BEGIN' */
+#define TC_END          (1 << 24)               /* 'END' */
 #define TC_EOF          (1 << 25)
-#define TC_VARIABLE     (1 << 26)
-#define TC_ARRAY        (1 << 27)
-#define TC_FUNCTION     (1 << 28)
-#define TC_STRING       (1 << 29)
+#define TC_VARIABLE     (1 << 26)               /* name */
+#define TC_ARRAY        (1 << 27)               /* name[ */
+#define TC_FUNCTION     (1 << 28)               /* name( - but unlike TC_ARRAY, parser does not consume '(' */
+#define TC_STRING       (1 << 29)               /* "..." */
 #define TC_NUMBER       (1 << 30)
 
 #ifndef debug_parse_print_tc
 #define debug_parse_print_tc(n) do { \
-if ((n) & TC_SEQSTART) debug_printf_parse(" SEQSTART"); \
-if ((n) & TC_SEQTERM ) debug_printf_parse(" SEQTERM" ); \
+if ((n) & TC_LPAREN  ) debug_printf_parse(" LPAREN"  ); \
+if ((n) & TC_RPAREN  ) debug_printf_parse(" RPAREN"  ); \
 if ((n) & TC_REGEXP  ) debug_printf_parse(" REGEXP"  ); \
 if ((n) & TC_OUTRDR  ) debug_printf_parse(" OUTRDR"  ); \
 if ((n) & TC_UOPPOST ) debug_printf_parse(" UOPPOST" ); \
@@ -288,7 +288,7 @@ if ((n) & TC_NUMBER  ) debug_printf_parse(" NUMBER"  ); \
 //#define TS_UNARYOP (TS_UOPPRE | TC_UOPPOST)
 #define TS_OPERAND  (TC_VARIABLE | TC_ARRAY | TC_FUNCTION \
                     | TC_BUILTIN | TC_LENGTH | TC_GETLINE \
-                    | TC_SEQSTART | TC_STRING | TC_NUMBER)
+                    | TC_LPAREN | TC_STRING | TC_NUMBER)
 
 #define TS_LVALUE   (TC_VARIABLE | TC_ARRAY)
 #define TS_STATEMNT (TC_STATX | TC_WHILE)
@@ -310,7 +310,7 @@ if ((n) & TC_NUMBER  ) debug_printf_parse(" NUMBER"  ); \
 
 /* if previous token class is CONCAT_L and next is CONCAT_R, concatenation */
 /* operator is inserted between them */
-#define TS_CONCAT_L (TC_VARIABLE | TC_ARRTERM | TC_SEQTERM \
+#define TS_CONCAT_L (TC_VARIABLE | TC_ARRTERM | TC_RPAREN \
                    | TC_STRING | TC_NUMBER | TC_UOPPOST \
                    | TC_LENGTH)
 #define TS_CONCAT_R (TS_OPERAND | TS_UOPPRE)
@@ -394,8 +394,8 @@ enum {
 #define NTCC    '\377'
 
 static const char tokenlist[] ALIGN1 =
-        "\1("         NTC                                   /* TC_SEQSTART */
-        "\1)"         NTC                                   /* TC_SEQTERM */
+        "\1("         NTC                                   /* TC_LPAREN */
+        "\1)"         NTC                                   /* TC_RPAREN */
         "\1/"         NTC                                   /* TC_REGEXP */
         "\2>>"        "\1>"         "\1|"       NTC         /* TC_OUTRDR */
         "\2++"        "\2--"        NTC                     /* TC_UOPPOST */
@@ -1250,9 +1250,9 @@ static uint32_t next_token(uint32_t expected)
                 /* insert concatenation operator when needed */
                 debug_printf_parse("%s: concat_inserted if all nonzero: %x %x %x %x\n", __func__,
                         (last_token_class & TS_CONCAT_L), (tc & TS_CONCAT_R), (expected & TS_BINOP),
-                        !(last_token_class == TC_LENGTH && tc == TC_SEQSTART));
+                        !(last_token_class == TC_LENGTH && tc == TC_LPAREN));
                 if ((last_token_class & TS_CONCAT_L) && (tc & TS_CONCAT_R) && (expected & TS_BINOP)
-                 && !(last_token_class == TC_LENGTH && tc == TC_SEQSTART) /* but not for "length(..." */
+                 && !(last_token_class == TC_LENGTH && tc == TC_LPAREN) /* but not for "length(..." */
                 ) {
                         concat_inserted = TRUE;
                         save_tclass = tc;
@@ -1304,10 +1304,10 @@ static void mk_re_node(const char *s, node *n, regex_t *re)
         xregcomp(re + 1, s, REG_EXTENDED | REG_ICASE);
 }
 
-static node *condition(void)
+static node *parse_lrparen_list(void)
 {
-        next_token(TC_SEQSTART);
-        return parse_expr(TC_SEQTERM);
+        next_token(TC_LPAREN);
+        return parse_expr(TC_RPAREN);
 }
 
 /* parse expression terminated by given argument, return ptr
@@ -1430,12 +1430,12 @@ static node *parse_expr(uint32_t term_tc)
                         debug_printf_parse("%s: TC_FUNCTION\n", __func__);
                         cn->info = OC_FUNC;
                         cn->r.f = newfunc(t_string);
-                        cn->l.n = condition();
+                        cn->l.n = parse_lrparen_list();
                         break;
 
-                case TC_SEQSTART:
-                        debug_printf_parse("%s: TC_SEQSTART\n", __func__);
-                        cn = vn->r.n = parse_expr(TC_SEQTERM);
+                case TC_LPAREN:
+                        debug_printf_parse("%s: TC_LPAREN\n", __func__);
+                        cn = vn->r.n = parse_expr(TC_RPAREN);
                         if (!cn)
                                 syntax_error("Empty sequence");
                         cn->a.n = vn;
@@ -1449,21 +1449,21 @@ static node *parse_expr(uint32_t term_tc)
 
                 case TC_BUILTIN:
                         debug_printf_parse("%s: TC_BUILTIN\n", __func__);
-                        cn->l.n = condition();
+                        cn->l.n = parse_lrparen_list();
                         break;
 
                 case TC_LENGTH:
                         debug_printf_parse("%s: TC_LENGTH\n", __func__);
-                        next_token(TC_SEQSTART /* length(...) */
+                        next_token(TC_LPAREN /* length(...) */
                                 | TS_OPTERM    /* length; (or newline)*/
                                 | TC_GRPTERM   /* length } */
                                 | TC_BINOPX    /* length <op> NUM */
                                 | TC_COMMA     /* print length, 1 */
                         );
                         rollback_token();
-                        if (t_tclass & TC_SEQSTART) {
+                        if (t_tclass & TC_LPAREN) {
                                 /* It was a "(" token. Handle just like TC_BUILTIN */
-                                cn->l.n = condition();
+                                cn->l.n = parse_lrparen_list();
                         }
                         break;
                 }
@@ -1562,7 +1562,7 @@ static void chain_group(void)
                 case ST_IF:
                         debug_printf_parse("%s: ST_IF\n", __func__);
                         n = chain_node(OC_BR | Vx);
-                        n->l.n = condition();
+                        n->l.n = parse_lrparen_list();
                         chain_group();
                         n2 = chain_node(OC_EXEC);
                         n->r.n = seq->last;
@@ -1576,7 +1576,7 @@ static void chain_group(void)
 
                 case ST_WHILE:
                         debug_printf_parse("%s: ST_WHILE\n", __func__);
-                        n2 = condition();
+                        n2 = parse_lrparen_list();
                         n = chain_loop(NULL);
                         n->l.n = n2;
                         break;
@@ -1587,14 +1587,14 @@ static void chain_group(void)
                         n = chain_loop(NULL);
                         n2->a.n = n->a.n;
                         next_token(TC_WHILE);
-                        n->l.n = condition();
+                        n->l.n = parse_lrparen_list();
                         break;
 
                 case ST_FOR:
                         debug_printf_parse("%s: ST_FOR\n", __func__);
-                        next_token(TC_SEQSTART);
-                        n2 = parse_expr(TC_SEMICOL | TC_SEQTERM);
-                        if (t_tclass & TC_SEQTERM) {    /* for-in */
+                        next_token(TC_LPAREN);
+                        n2 = parse_expr(TC_SEMICOL | TC_RPAREN);
+                        if (t_tclass & TC_RPAREN) {     /* for-in */
                                 if (!n2 || (n2->info & OPCLSMASK) != OC_IN)
                                         syntax_error(EMSG_UNEXP_TOKEN);
                                 n = chain_node(OC_WALKINIT | VV);
@@ -1607,7 +1607,7 @@ static void chain_group(void)
                                 n = chain_node(OC_EXEC | Vx);
                                 n->l.n = n2;
                                 n2 = parse_expr(TC_SEMICOL);
-                                n3 = parse_expr(TC_SEQTERM);
+                                n3 = parse_expr(TC_RPAREN);
                                 n = chain_loop(n3);
                                 n->l.n = n2;
                                 if (!n2)
@@ -1686,13 +1686,13 @@ static void parse_program(char *p)
                         f->body.first = NULL;
                         f->nargs = 0;
                         /* Match func arg list: a comma sep list of >= 0 args, and a close paren */
-                        while (next_token(TC_VARIABLE | TC_SEQTERM | TC_COMMA)) {
+                        while (next_token(TC_VARIABLE | TC_RPAREN | TC_COMMA)) {
                                 /* Either an empty arg list, or trailing comma from prev iter
                                  * must be followed by an arg */
-                                if (f->nargs == 0 && t_tclass == TC_SEQTERM)
+                                if (f->nargs == 0 && t_tclass == TC_RPAREN)
                                         break;
 
-                                /* TC_SEQSTART/TC_COMMA must be followed by TC_VARIABLE */
+                                /* TC_LPAREN/TC_COMMA must be followed by TC_VARIABLE */
                                 if (t_tclass != TC_VARIABLE)
                                         syntax_error(EMSG_UNEXP_TOKEN);
 
@@ -1700,7 +1700,7 @@ static void parse_program(char *p)
                                 v->x.aidx = f->nargs++;
 
                                 /* Arg followed either by end of arg list or 1 comma */
-                                if (next_token(TC_COMMA | TC_SEQTERM) & TC_SEQTERM)
+                                if (next_token(TC_COMMA | TC_RPAREN) & TC_RPAREN)
                                         break;
 //Impossible: next_token() above would error out and die
 //                              if (t_tclass != TC_COMMA)