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[unix-history] / usr / src / usr.bin / rdist / gram.y
diff --git a/usr/src/usr.bin/rdist/gram.y b/usr/src/usr.bin/rdist/gram.y
index ee73c99..5f40223 100644 (file)
--- a/usr/src/usr.bin/rdist/gram.y
+++ b/usr/src/usr.bin/rdist/gram.y
@@ -1,35 +1,50 @@
 %{
 %{
+#
+# Copyright (c) 1980 Regents of the University of California.
+# All rights reserved.  The Berkeley software License Agreement
+# specifies the terms and conditions for redistribution.
+#
+#
 #ifndef lint
 #ifndef lint
-static char *sccsid = "@(#)gram.y      4.5 (Berkeley) 83/10/20";
+static char *sccsid = "@(#)gram.y      5.1 (Berkeley) 85/06/06";
 #endif
 
 #include "defs.h"
 
 #endif
 
 #include "defs.h"
 
-struct block *lastn;
-struct block *lastc;
+struct cmd *cmds = NULL;
+struct cmd *last_cmd;
+struct namelist *last_n;
+struct subcmd *last_sc;
 
 %}
 
 
 %}
 
-%term EQUAL 1
-%term LP 2
-%term RP 3
-%term SM 4
-%term ARROW 5
-%term DCOLON 6
-%term NAME 7
-%term INSTALL 8
-%term NOTIFY 9
-%term EXCEPT 10
-%term OPTION 11
+%term EQUAL    1
+%term LP       2
+%term RP       3
+%term SM       4
+%term ARROW    5
+%term COLON    6
+%term DCOLON   7
+%term NAME     8
+%term STRING   9
+%term INSTALL  10
+%term NOTIFY   11
+%term EXCEPT   12
+%term PATTERN  13
+%term SPECIAL  14
+%term OPTION   15
 
 %union {
 
 %union {
-       struct block *blk;
        int intval;
        int intval;
+       char *string;
+       struct subcmd *subcmd;
+       struct namelist *namel;
 }
 
 }
 
-%type <blk> NAME, INSTALL, NOTIFY, EXCEPT
-%type <blk> namelist, names, opt_name, cmdlist, cmd
 %type <intval> OPTION, options
 %type <intval> OPTION, options
+%type <string> NAME, STRING
+%type <subcmd> INSTALL, NOTIFY, EXCEPT, PATTERN, SPECIAL, cmdlist, cmd
+%type <namel> namelist, names, opt_namelist
 
 %%
 
 
 %%
 
@@ -38,20 +53,25 @@ file:                 /* VOID */
                ;
 
 command:         NAME EQUAL namelist = {
                ;
 
 command:         NAME EQUAL namelist = {
-                       $1->b_args = $3;
-                       (void) lookup($1->b_name, $1, 1);
+                       (void) lookup($1, INSERT, $3);
                }
                | namelist ARROW namelist cmdlist = {
                }
                | namelist ARROW namelist cmdlist = {
-                       dohcmds($1, $3, $4);
+                       insert(NULL, $1, $3, $4);
                }
                }
-               | namelist DCOLON namelist cmdlist = {
-                       dofcmds($1, $3, $4);
+               | NAME COLON namelist ARROW namelist cmdlist = {
+                       insert($1, $3, $5, $6);
+               }
+               | namelist DCOLON NAME cmdlist = {
+                       append(NULL, $1, $3, $4);
+               }
+               | NAME COLON namelist DCOLON NAME cmdlist = {
+                       append($1, $3, $5, $6);
                }
                | error
                ;
 
 namelist:        NAME = {
                }
                | error
                ;
 
 namelist:        NAME = {
-                       $$ = $1;
+                       $$ = makenl($1);
                }
                | LP names RP = {
                        $$ = $2;
                }
                | LP names RP = {
                        $$ = $2;
@@ -59,51 +79,70 @@ namelist:     NAME = {
                ;
 
 names:           /* VOID */ {
                ;
 
 names:           /* VOID */ {
-                       $$ = lastn = NULL;
+                       $$ = last_n = NULL;
                }
                | names NAME = {
                }
                | names NAME = {
-                       if (lastn == NULL)
-                               $$ = lastn = $2;
+                       if (last_n == NULL)
+                               $$ = last_n = makenl($2);
                        else {
                        else {
-                               lastn->b_next = $2;
-                               lastn = $2;
+                               last_n->n_next = makenl($2);
+                               last_n = last_n->n_next;
                                $$ = $1;
                        }
                }
                ;
 
 cmdlist:         /* VOID */ {
                                $$ = $1;
                        }
                }
                ;
 
 cmdlist:         /* VOID */ {
-                       $$ = lastc = NULL;
+                       $$ = last_sc = NULL;
                }
                | cmdlist cmd = {
                }
                | cmdlist cmd = {
-                       if (lastc == NULL)
-                               $$ = lastc = $2;
+                       if (last_sc == NULL)
+                               $$ = last_sc = $2;
                        else {
                        else {
-                               lastc->b_next = $2;
-                               lastc = $2;
+                               last_sc->sc_next = $2;
+                               last_sc = $2;
                                $$ = $1;
                        }
                }
                ;
 
                                $$ = $1;
                        }
                }
                ;
 
-cmd:             INSTALL options opt_name SM = {
-                       register struct block *b;
+cmd:             INSTALL options opt_namelist SM = {
+                       register struct namelist *nl;
 
 
-                       $1->b_options = $2 | options;
+                       $1->sc_options = $2 | options;
                        if ($3 != NULL) {
                        if ($3 != NULL) {
-                               b = expand($3, 0);
-                               if (b->b_next != NULL)
-                                       fatal("exactly one name allowed\n");
-                               $1->b_name = b->b_name;
+                               nl = expand($3, E_VARS);
+                               if (nl->n_next != NULL)
+                                       yyerror("only one name allowed\n");
+                               $1->sc_name = nl->n_name;
+                               free(nl);
                        }
                        $$ = $1;
                }
                | NOTIFY namelist SM = {
                        }
                        $$ = $1;
                }
                | NOTIFY namelist SM = {
-                       $1->b_args = expand($2, 1);
+                       if ($2 != NULL)
+                               $1->sc_args = expand($2, E_VARS);
                        $$ = $1;
                }
                | EXCEPT namelist SM = {
                        $$ = $1;
                }
                | EXCEPT namelist SM = {
-                       $1->b_args = expand($2, 0);
+                       if ($2 != NULL)
+                               $1->sc_args = expand($2, E_ALL);
+                       $$ = $1;
+               }
+               | PATTERN namelist SM = {
+                       struct namelist *nl;
+                       char *cp, *re_comp();
+
+                       for (nl = $2; nl != NULL; nl = nl->n_next)
+                               if ((cp = re_comp(nl->n_name)) != NULL)
+                                       yyerror(cp);
+                       $1->sc_args = expand($2, E_VARS);
+                       $$ = $1;
+               }
+               | SPECIAL opt_namelist STRING SM = {
+                       if ($2 != NULL)
+                               $1->sc_args = expand($2, E_ALL);
+                       $1->sc_name = $3;
                        $$ = $1;
                }
                ;
                        $$ = $1;
                }
                ;
@@ -116,10 +155,10 @@ options:    /* VOID */ = {
                }
                ;
 
                }
                ;
 
-opt_name:        /* VOID */ = {
+opt_namelist:    /* VOID */ = {
                        $$ = NULL;
                }
                        $$ = NULL;
                }
-               | NAME = {
+               | namelist = {
                        $$ = $1;
                }
                ;
                        $$ = $1;
                }
                ;
@@ -171,17 +210,46 @@ again:
                c = '-';
                break;
 
                c = '-';
                break;
 
-       case ':':  /* :: */
+       case '"':  /* STRING */
+               cp1 = yytext;
+               cp2 = &yytext[INMAX - 1];
+               for (;;) {
+                       if (cp1 >= cp2) {
+                               yyerror("command string too long\n");
+                               break;
+                       }
+                       c = getc(fin);
+                       if (c == EOF || c == '"')
+                               break;
+                       if (c == '\\') {
+                               if ((c = getc(fin)) == EOF) {
+                                       *cp1++ = '\\';
+                                       break;
+                               }
+                       }
+                       if (c == '\n') {
+                               yylineno++;
+                               c = ' '; /* can't send '\n' */
+                       }
+                       *cp1++ = c;
+               }
+               if (c != '"')
+                       yyerror("missing closing '\"'\n");
+               *cp1 = '\0';
+               yylval.string = makestr(yytext);
+               return(STRING);
+
+       case ':':  /* : or :: */
                if ((c = getc(fin)) == ':')
                        return(DCOLON);
                ungetc(c, fin);
                if ((c = getc(fin)) == ':')
                        return(DCOLON);
                ungetc(c, fin);
-               c = ':';
+               return(COLON);
        }
        cp1 = yytext;
        cp2 = &yytext[INMAX - 1];
        for (;;) {
                if (cp1 >= cp2) {
        }
        cp1 = yytext;
        cp2 = &yytext[INMAX - 1];
        for (;;) {
                if (cp1 >= cp2) {
-                       fatal("input line too long\n");
+                       yyerror("input line too long\n");
                        break;
                }
                if (c == '\\') {
                        break;
                }
                if (c == '\\') {
@@ -195,7 +263,7 @@ again:
                }
                *cp1++ = c;
                c = getc(fin);
                }
                *cp1++ = c;
                c = getc(fin);
-               if (c == EOF || any(c, " \t()=;\n")) {
+               if (c == EOF || any(c, " \"'\t()=;:\n")) {
                        ungetc(c, fin);
                        break;
                }
                        ungetc(c, fin);
                        break;
                }
@@ -203,7 +271,11 @@ again:
        *cp1 = '\0';
        if (yytext[0] == '-' && yytext[2] == '\0') {
                switch (yytext[1]) {
        *cp1 = '\0';
        if (yytext[0] == '-' && yytext[2] == '\0') {
                switch (yytext[1]) {
-               case 'r':
+               case 'b':
+                       yylval.intval = COMPARE;
+                       return(OPTION);
+
+               case 'R':
                        yylval.intval = REMOVE;
                        return(OPTION);
 
                        yylval.intval = REMOVE;
                        return(OPTION);
 
@@ -218,6 +290,14 @@ again:
                case 'y':
                        yylval.intval = YOUNGER;
                        return(OPTION);
                case 'y':
                        yylval.intval = YOUNGER;
                        return(OPTION);
+
+               case 'h':
+                       yylval.intval = FOLLOW;
+                       return(OPTION);
+
+               case 'i':
+                       yylval.intval = IGNLNKS;
+                       return(OPTION);
                }
        }
        if (!strcmp(yytext, "install"))
                }
        }
        if (!strcmp(yytext, "install"))
@@ -226,9 +306,15 @@ again:
                c = NOTIFY;
        else if (!strcmp(yytext, "except"))
                c = EXCEPT;
                c = NOTIFY;
        else if (!strcmp(yytext, "except"))
                c = EXCEPT;
-       else
-               c = NAME;
-       yylval.blk = makeblock(c, yytext);
+       else if (!strcmp(yytext, "except_pat"))
+               c = PATTERN;
+       else if (!strcmp(yytext, "special"))
+               c = SPECIAL;
+       else {
+               yylval.string = makestr(yytext);
+               return(NAME);
+       }
+       yylval.subcmd = makesubcmd(c);
        return(c);
 }
 
        return(c);
 }
 
@@ -242,6 +328,84 @@ any(c, str)
        return(0);
 }
 
        return(0);
 }
 
+/*
+ * Insert or append ARROW command to list of hosts to be updated.
+ */
+insert(label, files, hosts, subcmds)
+       char *label;
+       struct namelist *files, *hosts;
+       struct subcmd *subcmds;
+{
+       register struct cmd *c, *prev, *nc;
+       register struct namelist *h;
+
+       files = expand(files, E_VARS|E_SHELL);
+       hosts = expand(hosts, E_ALL);
+       for (h = hosts; h != NULL; free(h), h = h->n_next) {
+               /*
+                * Search command list for an update to the same host.
+                */
+               for (prev = NULL, c = cmds; c!=NULL; prev = c, c = c->c_next) {
+                       if (strcmp(c->c_name, h->n_name) == 0) {
+                               do {
+                                       prev = c;
+                                       c = c->c_next;
+                               } while (c != NULL &&
+                                       strcmp(c->c_name, h->n_name) == 0);
+                               break;
+                       }
+               }
+               /*
+                * Insert new command to update host.
+                */
+               nc = ALLOC(cmd);
+               if (nc == NULL)
+                       fatal("ran out of memory\n");
+               nc->c_type = ARROW;
+               nc->c_name = h->n_name;
+               nc->c_label = label;
+               nc->c_files = files;
+               nc->c_cmds = subcmds;
+               nc->c_next = c;
+               if (prev == NULL)
+                       cmds = nc;
+               else
+                       prev->c_next = nc;
+               /* update last_cmd if appending nc to cmds */
+               if (c == NULL)
+                       last_cmd = nc;
+       }
+}
+
+/*
+ * Append DCOLON command to the end of the command list since these are always
+ * executed in the order they appear in the distfile.
+ */
+append(label, files, stamp, subcmds)
+       char *label;
+       struct namelist *files;
+       char *stamp;
+       struct subcmd *subcmds;
+{
+       register struct cmd *c;
+
+       c = ALLOC(cmd);
+       if (c == NULL)
+               fatal("ran out of memory\n");
+       c->c_type = DCOLON;
+       c->c_name = stamp;
+       c->c_label = label;
+       c->c_files = expand(files, E_ALL);
+       c->c_cmds = subcmds;
+       c->c_next = NULL;
+       if (cmds == NULL)
+               cmds = last_cmd = c;
+       else {
+               last_cmd->c_next = c;
+               last_cmd = c;
+       }
+}
+
 /*
  * Error printing routine in parser.
  */
 /*
  * Error printing routine in parser.
  */
@@ -250,6 +414,62 @@ yyerror(s)
 {
        extern int yychar;
 
 {
        extern int yychar;
 
-       errs++;
+       nerrs++;
+       fflush(stdout);
        fprintf(stderr, "rdist: line %d: %s\n", yylineno, s);
 }
        fprintf(stderr, "rdist: line %d: %s\n", yylineno, s);
 }
+
+/*
+ * Return a copy of the string.
+ */
+char *
+makestr(str)
+       char *str;
+{
+       register char *cp, *s;
+
+       str = cp = malloc(strlen(s = str) + 1);
+       if (cp == NULL)
+               fatal("ran out of memory\n");
+       while (*cp++ = *s++)
+               ;
+       return(str);
+}
+
+/*
+ * Allocate a namelist structure.
+ */
+struct namelist *
+makenl(name)
+       char *name;
+{
+       register struct namelist *nl;
+
+       nl = ALLOC(namelist);
+       if (nl == NULL)
+               fatal("ran out of memory\n");
+       nl->n_name = name;
+       nl->n_next = NULL;
+       return(nl);
+}
+
+/*
+ * Make a sub command for lists of variables, commands, etc.
+ */
+struct subcmd *
+makesubcmd(type, name)
+       int type;
+       register char *name;
+{
+       register char *cp;
+       register struct subcmd *sc;
+
+       sc = ALLOC(subcmd);
+       if (sc == NULL)
+               fatal("ran out of memory\n");
+       sc->sc_type = type;
+       sc->sc_args = NULL;
+       sc->sc_next = NULL;
+       sc->sc_name = NULL;
+       return(sc);
+}
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.