| 1 | ;;; -*-emacs-lisp-*- |
| 2 | |
| 3 | (skelrc-force-mode 'c-mode) |
| 4 | |
| 5 | (setq skel-alist |
| 6 | (append |
| 7 | `((new-comment . "/*") |
| 8 | (cont-comment . " *") |
| 9 | (end-comment . " */") |
| 10 | (block-start . "/*") |
| 11 | (block-banner-knob . "* ") |
| 12 | (block-banner-end . "*/") |
| 13 | (block-end . "\n */") |
| 14 | (preamble . "[[c-stuff]][[yacc-stuff]][[c-code]]") |
| 15 | |
| 16 | ;; --- Heavy-duty C preamble to the parser --- |
| 17 | |
| 18 | (c-stuff . "[[includes]][[macros]][[depends]][[references]]") |
| 19 | (includes . "[[includes-banner]]\n%{\n\n[[headers]]") |
| 20 | (includes-banner . (skelrc-banner "Header files")) |
| 21 | (headers . "") |
| 22 | (macros . "[[macros-banner]]\n\n[[macros-body]]") |
| 23 | (macros-banner . (skelrc-banner "Parser control macros")) |
| 24 | (macros-body . "#define YYDEBUG 1\n#define YYERROR_VERBOSE\n\n") |
| 25 | (depends . "[[deps-banner]]\n\n[[deps-body]]") |
| 26 | (deps-banner . (skelrc-banner "External dependencies")) |
| 27 | (deps-body . "extern int yylex(void);\n\n") |
| 28 | (references . "[[refs-banner]]\n\n[[refs-body]]") |
| 29 | (refs-banner . (skelrc-banner "Forward references")) |
| 30 | (refs-body . "static int yyerror(const char */*e*/);\n\n") |
| 31 | |
| 32 | ;; --- Yacc preamble and main parser --- |
| 33 | |
| 34 | (yacc-stuff . "[[yacc-decls]][[tokens]][[nonterms]][[yacc-parser]]") |
| 35 | |
| 36 | (yacc-decls . "[[decls-banner]]%}\n\n[[decls-body]]") |
| 37 | (decls-banner . (skelrc-banner "Yacc declarations")) |
| 38 | (decls-body . ,(concat "%expect 0\n" |
| 39 | "%start ...\n" |
| 40 | "\n" |
| 41 | "/* --- Stack type --- */\n" |
| 42 | "\n" |
| 43 | "%union {\n" |
| 44 | "}\n" |
| 45 | "\n")) |
| 46 | (tokens . "[[toks-banner]]\n\n") |
| 47 | (toks-banner . (skelrc-banner "Token declarations")) |
| 48 | (nonterms . "[[nonterms-banner]]\n\n") |
| 49 | (nonterms-banner . (skelrc-banner "Nonterminal declarations")) |
| 50 | |
| 51 | (yacc-parser . "[[parser-banner]]\n%%\n\n") |
| 52 | (parser-banner . (skelrc-banner "Grammar rules")) |
| 53 | |
| 54 | ;; --- C code stuck on the end --- |
| 55 | |
| 56 | (c-code . "[[c-code-banner]]\n%%\n\n[[yyerror]]") |
| 57 | (c-code-banner . (skelrc-banner "C code")) |
| 58 | (yyerror . ,(concat "/* --- @yyerror@ --- *\n" |
| 59 | " *\n" |
| 60 | " * Arguments:\t@const char *e@ = " |
| 61 | "error message text\n" |
| 62 | " *\n" |
| 63 | " * Returns:\t---\n" |
| 64 | " *\n" |
| 65 | " * Use:\t\tHandles errors reported by " |
| 66 | "the parser.\n" |
| 67 | " */\n" |
| 68 | "\n" |
| 69 | "static void yyerror(const char *e)\n" |
| 70 | "{\n" |
| 71 | " fprintf(stderr, \"%s\\n\", e);\n" |
| 72 | "}\n" |
| 73 | "\n"))) |
| 74 | skel-alist)) |