11556Srgrimes/*- 21556Srgrimes * Copyright (c) 1991, 1993 31556Srgrimes * The Regents of the University of California. All rights reserved. 41556Srgrimes * 51556Srgrimes * This code is derived from software contributed to Berkeley by 61556Srgrimes * Kenneth Almquist. 71556Srgrimes * 81556Srgrimes * Redistribution and use in source and binary forms, with or without 91556Srgrimes * modification, are permitted provided that the following conditions 101556Srgrimes * are met: 111556Srgrimes * 1. Redistributions of source code must retain the above copyright 121556Srgrimes * notice, this list of conditions and the following disclaimer. 131556Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 141556Srgrimes * notice, this list of conditions and the following disclaimer in the 151556Srgrimes * documentation and/or other materials provided with the distribution. 161556Srgrimes * 4. Neither the name of the University nor the names of its contributors 171556Srgrimes * may be used to endorse or promote products derived from this software 181556Srgrimes * without specific prior written permission. 191556Srgrimes * 201556Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 211556Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 221556Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 231556Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 241556Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 251556Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 261556Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 271556Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 281556Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 291556Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 301556Srgrimes * SUCH DAMAGE. 311556Srgrimes */ 321556Srgrimes 33114433Sobrien#if 0 341556Srgrimes#ifndef lint 3520425Sstevestatic char const copyright[] = 361556Srgrimes"@(#) Copyright (c) 1991, 1993\n\ 371556Srgrimes The Regents of the University of California. All rights reserved.\n"; 381556Srgrimes#endif /* not lint */ 391556Srgrimes 401556Srgrimes#ifndef lint 4136150Scharnierstatic char sccsid[] = "@(#)mknodes.c 8.2 (Berkeley) 5/4/95"; 42114433Sobrien#endif /* not lint */ 4336150Scharnier#endif 4499110Sobrien#include <sys/cdefs.h> 4599110Sobrien__FBSDID("$FreeBSD$"); 461556Srgrimes 471556Srgrimes/* 481556Srgrimes * This program reads the nodetypes file and nodes.c.pat file. It generates 491556Srgrimes * the files nodes.h and nodes.c. 501556Srgrimes */ 511556Srgrimes 521556Srgrimes#include <stdio.h> 5317987Speter#include <stdlib.h> 5417987Speter#include <string.h> 5553891Scracauer#include <errno.h> 5617987Speter#include <stdarg.h> 571556Srgrimes 581556Srgrimes#define MAXTYPES 50 /* max number of node types */ 591556Srgrimes#define MAXFIELDS 20 /* max fields in a structure */ 601556Srgrimes#define BUFLEN 100 /* size of character buffers */ 611556Srgrimes 621556Srgrimes/* field types */ 631556Srgrimes#define T_NODE 1 /* union node *field */ 641556Srgrimes#define T_NODELIST 2 /* struct nodelist *field */ 651556Srgrimes#define T_STRING 3 661556Srgrimes#define T_INT 4 /* int field */ 671556Srgrimes#define T_OTHER 5 /* other */ 681556Srgrimes#define T_TEMP 6 /* don't copy this field */ 691556Srgrimes 701556Srgrimes 711556Srgrimesstruct field { /* a structure field */ 721556Srgrimes char *name; /* name of field */ 731556Srgrimes int type; /* type of field */ 741556Srgrimes char *decl; /* declaration of field */ 751556Srgrimes}; 761556Srgrimes 771556Srgrimes 781556Srgrimesstruct str { /* struct representing a node structure */ 791556Srgrimes char *tag; /* structure tag */ 801556Srgrimes int nfields; /* number of fields in the structure */ 811556Srgrimes struct field field[MAXFIELDS]; /* the fields of the structure */ 821556Srgrimes int done; /* set if fully parsed */ 831556Srgrimes}; 841556Srgrimes 851556Srgrimes 8617987Speterstatic int ntypes; /* number of node types */ 8717987Speterstatic char *nodename[MAXTYPES]; /* names of the nodes */ 8817987Speterstatic struct str *nodestr[MAXTYPES]; /* type of structure used by the node */ 8917987Speterstatic int nstr; /* number of structures */ 9017987Speterstatic struct str str[MAXTYPES]; /* the structures */ 9117987Speterstatic struct str *curstr; /* current structure */ 9217987Speterstatic char line[1024]; 9317987Speterstatic int linno; 9417987Speterstatic char *linep; 951556Srgrimes 9690111Simpstatic void parsenode(void); 9790111Simpstatic void parsefield(void); 9890111Simpstatic void output(char *); 9990111Simpstatic void outsizes(FILE *); 10090111Simpstatic void outfunc(FILE *, int); 10190111Simpstatic void indent(int, FILE *); 10290111Simpstatic int nextfield(char *); 10390111Simpstatic void skipbl(void); 104292786Sjillesstatic int readline(FILE *); 105181269Scpercivastatic void error(const char *, ...) __printf0like(1, 2) __dead2; 10690111Simpstatic char *savestr(const char *); 1071556Srgrimes 1081556Srgrimes 10917987Speterint 11090111Simpmain(int argc, char *argv[]) 11117987Speter{ 112292786Sjilles FILE *infp; 113292786Sjilles 1141556Srgrimes if (argc != 3) 11518016Speter error("usage: mknodes file"); 1161556Srgrimes if ((infp = fopen(argv[1], "r")) == NULL) 11753891Scracauer error("Can't open %s: %s", argv[1], strerror(errno)); 118292786Sjilles while (readline(infp)) { 1191556Srgrimes if (line[0] == ' ' || line[0] == '\t') 1201556Srgrimes parsefield(); 1211556Srgrimes else if (line[0] != '\0') 1221556Srgrimes parsenode(); 1231556Srgrimes } 124292786Sjilles fclose(infp); 1251556Srgrimes output(argv[2]); 1261556Srgrimes exit(0); 1271556Srgrimes} 1281556Srgrimes 1291556Srgrimes 1301556Srgrimes 13117987Speterstatic void 13290111Simpparsenode(void) 13317987Speter{ 1341556Srgrimes char name[BUFLEN]; 1351556Srgrimes char tag[BUFLEN]; 1361556Srgrimes struct str *sp; 1371556Srgrimes 1381556Srgrimes if (curstr && curstr->nfields > 0) 1391556Srgrimes curstr->done = 1; 1401556Srgrimes nextfield(name); 1411556Srgrimes if (! nextfield(tag)) 1421556Srgrimes error("Tag expected"); 1431556Srgrimes if (*linep != '\0') 1441556Srgrimes error("Garbage at end of line"); 1451556Srgrimes nodename[ntypes] = savestr(name); 1461556Srgrimes for (sp = str ; sp < str + nstr ; sp++) { 14717987Speter if (strcmp(sp->tag, tag) == 0) 1481556Srgrimes break; 1491556Srgrimes } 1501556Srgrimes if (sp >= str + nstr) { 1511556Srgrimes sp->tag = savestr(tag); 1521556Srgrimes sp->nfields = 0; 1531556Srgrimes curstr = sp; 1541556Srgrimes nstr++; 1551556Srgrimes } 1561556Srgrimes nodestr[ntypes] = sp; 1571556Srgrimes ntypes++; 1581556Srgrimes} 1591556Srgrimes 1601556Srgrimes 16117987Speterstatic void 16290111Simpparsefield(void) 16317987Speter{ 1641556Srgrimes char name[BUFLEN]; 1651556Srgrimes char type[BUFLEN]; 1661556Srgrimes char decl[2 * BUFLEN]; 1671556Srgrimes struct field *fp; 1681556Srgrimes 1691556Srgrimes if (curstr == NULL || curstr->done) 1701556Srgrimes error("No current structure to add field to"); 1711556Srgrimes if (! nextfield(name)) 1721556Srgrimes error("No field name"); 1731556Srgrimes if (! nextfield(type)) 1741556Srgrimes error("No field type"); 1751556Srgrimes fp = &curstr->field[curstr->nfields]; 1761556Srgrimes fp->name = savestr(name); 17717987Speter if (strcmp(type, "nodeptr") == 0) { 1781556Srgrimes fp->type = T_NODE; 1791556Srgrimes sprintf(decl, "union node *%s", name); 18017987Speter } else if (strcmp(type, "nodelist") == 0) { 1811556Srgrimes fp->type = T_NODELIST; 1821556Srgrimes sprintf(decl, "struct nodelist *%s", name); 18317987Speter } else if (strcmp(type, "string") == 0) { 1841556Srgrimes fp->type = T_STRING; 1851556Srgrimes sprintf(decl, "char *%s", name); 18617987Speter } else if (strcmp(type, "int") == 0) { 1871556Srgrimes fp->type = T_INT; 1881556Srgrimes sprintf(decl, "int %s", name); 18917987Speter } else if (strcmp(type, "other") == 0) { 1901556Srgrimes fp->type = T_OTHER; 19117987Speter } else if (strcmp(type, "temp") == 0) { 1921556Srgrimes fp->type = T_TEMP; 1931556Srgrimes } else { 1941556Srgrimes error("Unknown type %s", type); 1951556Srgrimes } 1961556Srgrimes if (fp->type == T_OTHER || fp->type == T_TEMP) { 1971556Srgrimes skipbl(); 1981556Srgrimes fp->decl = savestr(linep); 1991556Srgrimes } else { 2001556Srgrimes if (*linep) 2011556Srgrimes error("Garbage at end of line"); 2021556Srgrimes fp->decl = savestr(decl); 2031556Srgrimes } 2041556Srgrimes curstr->nfields++; 2051556Srgrimes} 2061556Srgrimes 2071556Srgrimes 2081556Srgrimeschar writer[] = "\ 2091556Srgrimes/*\n\ 2101556Srgrimes * This file was generated by the mknodes program.\n\ 2111556Srgrimes */\n\ 2121556Srgrimes\n"; 2131556Srgrimes 21417987Speterstatic void 21590111Simpoutput(char *file) 21617987Speter{ 2171556Srgrimes FILE *hfile; 2181556Srgrimes FILE *cfile; 2191556Srgrimes FILE *patfile; 2201556Srgrimes int i; 2211556Srgrimes struct str *sp; 2221556Srgrimes struct field *fp; 2231556Srgrimes char *p; 2241556Srgrimes 2251556Srgrimes if ((patfile = fopen(file, "r")) == NULL) 22653891Scracauer error("Can't open %s: %s", file, strerror(errno)); 2271556Srgrimes if ((hfile = fopen("nodes.h", "w")) == NULL) 22853891Scracauer error("Can't create nodes.h: %s", strerror(errno)); 2291556Srgrimes if ((cfile = fopen("nodes.c", "w")) == NULL) 2301556Srgrimes error("Can't create nodes.c"); 2311556Srgrimes fputs(writer, hfile); 2321556Srgrimes for (i = 0 ; i < ntypes ; i++) 2331556Srgrimes fprintf(hfile, "#define %s %d\n", nodename[i], i); 2341556Srgrimes fputs("\n\n\n", hfile); 2351556Srgrimes for (sp = str ; sp < &str[nstr] ; sp++) { 2361556Srgrimes fprintf(hfile, "struct %s {\n", sp->tag); 2371556Srgrimes for (i = sp->nfields, fp = sp->field ; --i >= 0 ; fp++) { 2381556Srgrimes fprintf(hfile, " %s;\n", fp->decl); 2391556Srgrimes } 2401556Srgrimes fputs("};\n\n\n", hfile); 2411556Srgrimes } 2421556Srgrimes fputs("union node {\n", hfile); 2431556Srgrimes fprintf(hfile, " int type;\n"); 2441556Srgrimes for (sp = str ; sp < &str[nstr] ; sp++) { 2451556Srgrimes fprintf(hfile, " struct %s %s;\n", sp->tag, sp->tag); 2461556Srgrimes } 2471556Srgrimes fputs("};\n\n\n", hfile); 2481556Srgrimes fputs("struct nodelist {\n", hfile); 2491556Srgrimes fputs("\tstruct nodelist *next;\n", hfile); 2501556Srgrimes fputs("\tunion node *n;\n", hfile); 2511556Srgrimes fputs("};\n\n\n", hfile); 252196634Sjilles fputs("struct funcdef;\n", hfile); 253196483Sjilles fputs("struct funcdef *copyfunc(union node *);\n", hfile); 254196634Sjilles fputs("union node *getfuncnode(struct funcdef *);\n", hfile); 255196483Sjilles fputs("void reffunc(struct funcdef *);\n", hfile); 256196483Sjilles fputs("void unreffunc(struct funcdef *);\n", hfile); 257292786Sjilles if (ferror(hfile)) 258292786Sjilles error("Can't write to nodes.h"); 259292786Sjilles if (fclose(hfile)) 260292786Sjilles error("Can't close nodes.h"); 2611556Srgrimes 2621556Srgrimes fputs(writer, cfile); 2631556Srgrimes while (fgets(line, sizeof line, patfile) != NULL) { 2641556Srgrimes for (p = line ; *p == ' ' || *p == '\t' ; p++); 26517987Speter if (strcmp(p, "%SIZES\n") == 0) 2661556Srgrimes outsizes(cfile); 26717987Speter else if (strcmp(p, "%CALCSIZE\n") == 0) 2681556Srgrimes outfunc(cfile, 1); 26917987Speter else if (strcmp(p, "%COPY\n") == 0) 2701556Srgrimes outfunc(cfile, 0); 2711556Srgrimes else 2721556Srgrimes fputs(line, cfile); 2731556Srgrimes } 274292786Sjilles fclose(patfile); 275292786Sjilles if (ferror(cfile)) 276292786Sjilles error("Can't write to nodes.c"); 277292786Sjilles if (fclose(cfile)) 278292786Sjilles error("Can't close nodes.c"); 2791556Srgrimes} 2801556Srgrimes 2811556Srgrimes 2821556Srgrimes 28317987Speterstatic void 28490111Simpoutsizes(FILE *cfile) 28517987Speter{ 2861556Srgrimes int i; 2871556Srgrimes 2881556Srgrimes fprintf(cfile, "static const short nodesize[%d] = {\n", ntypes); 2891556Srgrimes for (i = 0 ; i < ntypes ; i++) { 2901556Srgrimes fprintf(cfile, " ALIGN(sizeof (struct %s)),\n", nodestr[i]->tag); 2911556Srgrimes } 2921556Srgrimes fprintf(cfile, "};\n"); 2931556Srgrimes} 2941556Srgrimes 2951556Srgrimes 29617987Speterstatic void 29790111Simpoutfunc(FILE *cfile, int calcsize) 29817987Speter{ 2991556Srgrimes struct str *sp; 3001556Srgrimes struct field *fp; 3011556Srgrimes int i; 3021556Srgrimes 3031556Srgrimes fputs(" if (n == NULL)\n", cfile); 3041556Srgrimes if (calcsize) 3051556Srgrimes fputs(" return;\n", cfile); 3061556Srgrimes else 3071556Srgrimes fputs(" return NULL;\n", cfile); 3081556Srgrimes if (calcsize) 3091556Srgrimes fputs(" funcblocksize += nodesize[n->type];\n", cfile); 3101556Srgrimes else { 3111556Srgrimes fputs(" new = funcblock;\n", cfile); 31225226Ssteve fputs(" funcblock = (char *)funcblock + nodesize[n->type];\n", cfile); 3131556Srgrimes } 3141556Srgrimes fputs(" switch (n->type) {\n", cfile); 3151556Srgrimes for (sp = str ; sp < &str[nstr] ; sp++) { 3161556Srgrimes for (i = 0 ; i < ntypes ; i++) { 3171556Srgrimes if (nodestr[i] == sp) 3181556Srgrimes fprintf(cfile, " case %s:\n", nodename[i]); 3191556Srgrimes } 3201556Srgrimes for (i = sp->nfields ; --i >= 1 ; ) { 3211556Srgrimes fp = &sp->field[i]; 3221556Srgrimes switch (fp->type) { 3231556Srgrimes case T_NODE: 3241556Srgrimes if (calcsize) { 3251556Srgrimes indent(12, cfile); 3261556Srgrimes fprintf(cfile, "calcsize(n->%s.%s);\n", 3271556Srgrimes sp->tag, fp->name); 3281556Srgrimes } else { 3291556Srgrimes indent(12, cfile); 3301556Srgrimes fprintf(cfile, "new->%s.%s = copynode(n->%s.%s);\n", 3311556Srgrimes sp->tag, fp->name, sp->tag, fp->name); 3321556Srgrimes } 3331556Srgrimes break; 3341556Srgrimes case T_NODELIST: 3351556Srgrimes if (calcsize) { 3361556Srgrimes indent(12, cfile); 3371556Srgrimes fprintf(cfile, "sizenodelist(n->%s.%s);\n", 3381556Srgrimes sp->tag, fp->name); 3391556Srgrimes } else { 3401556Srgrimes indent(12, cfile); 3411556Srgrimes fprintf(cfile, "new->%s.%s = copynodelist(n->%s.%s);\n", 3421556Srgrimes sp->tag, fp->name, sp->tag, fp->name); 3431556Srgrimes } 3441556Srgrimes break; 3451556Srgrimes case T_STRING: 3461556Srgrimes if (calcsize) { 3471556Srgrimes indent(12, cfile); 3481556Srgrimes fprintf(cfile, "funcstringsize += strlen(n->%s.%s) + 1;\n", 3491556Srgrimes sp->tag, fp->name); 3501556Srgrimes } else { 3511556Srgrimes indent(12, cfile); 3521556Srgrimes fprintf(cfile, "new->%s.%s = nodesavestr(n->%s.%s);\n", 3531556Srgrimes sp->tag, fp->name, sp->tag, fp->name); 3541556Srgrimes } 3551556Srgrimes break; 3561556Srgrimes case T_INT: 3571556Srgrimes case T_OTHER: 3581556Srgrimes if (! calcsize) { 3591556Srgrimes indent(12, cfile); 3601556Srgrimes fprintf(cfile, "new->%s.%s = n->%s.%s;\n", 3611556Srgrimes sp->tag, fp->name, sp->tag, fp->name); 3621556Srgrimes } 3631556Srgrimes break; 3641556Srgrimes } 3651556Srgrimes } 3661556Srgrimes indent(12, cfile); 3671556Srgrimes fputs("break;\n", cfile); 3681556Srgrimes } 3691556Srgrimes fputs(" };\n", cfile); 3701556Srgrimes if (! calcsize) 3711556Srgrimes fputs(" new->type = n->type;\n", cfile); 3721556Srgrimes} 3731556Srgrimes 3741556Srgrimes 37517987Speterstatic void 37690111Simpindent(int amount, FILE *fp) 37717987Speter{ 3781556Srgrimes while (amount >= 8) { 3791556Srgrimes putc('\t', fp); 3801556Srgrimes amount -= 8; 3811556Srgrimes } 3821556Srgrimes while (--amount >= 0) { 3831556Srgrimes putc(' ', fp); 3841556Srgrimes } 3851556Srgrimes} 3861556Srgrimes 3871556Srgrimes 38817987Speterstatic int 38990111Simpnextfield(char *buf) 39017987Speter{ 39125226Ssteve char *p, *q; 3921556Srgrimes 3931556Srgrimes p = linep; 3941556Srgrimes while (*p == ' ' || *p == '\t') 3951556Srgrimes p++; 3961556Srgrimes q = buf; 3971556Srgrimes while (*p != ' ' && *p != '\t' && *p != '\0') 3981556Srgrimes *q++ = *p++; 3991556Srgrimes *q = '\0'; 4001556Srgrimes linep = p; 4011556Srgrimes return (q > buf); 4021556Srgrimes} 4031556Srgrimes 4041556Srgrimes 40517987Speterstatic void 40690111Simpskipbl(void) 40717987Speter{ 4081556Srgrimes while (*linep == ' ' || *linep == '\t') 4091556Srgrimes linep++; 4101556Srgrimes} 4111556Srgrimes 4121556Srgrimes 41317987Speterstatic int 414292786Sjillesreadline(FILE *infp) 41517987Speter{ 41625226Ssteve char *p; 4171556Srgrimes 4181556Srgrimes if (fgets(line, 1024, infp) == NULL) 4191556Srgrimes return 0; 4201556Srgrimes for (p = line ; *p != '#' && *p != '\n' && *p != '\0' ; p++); 4211556Srgrimes while (p > line && (p[-1] == ' ' || p[-1] == '\t')) 4221556Srgrimes p--; 4231556Srgrimes *p = '\0'; 4241556Srgrimes linep = line; 4251556Srgrimes linno++; 4261556Srgrimes if (p - line > BUFLEN) 4271556Srgrimes error("Line too long"); 4281556Srgrimes return 1; 4291556Srgrimes} 4301556Srgrimes 4311556Srgrimes 4321556Srgrimes 43317987Speterstatic void 43417987Spetererror(const char *msg, ...) 43517987Speter{ 43617987Speter va_list va; 43717987Speter va_start(va, msg); 43817987Speter 43917987Speter (void) fprintf(stderr, "line %d: ", linno); 44017987Speter (void) vfprintf(stderr, msg, va); 44117987Speter (void) fputc('\n', stderr); 44217987Speter 44317987Speter va_end(va); 44417987Speter 4451556Srgrimes exit(2); 4461556Srgrimes} 4471556Srgrimes 4481556Srgrimes 4491556Srgrimes 45017987Speterstatic char * 45190111Simpsavestr(const char *s) 45217987Speter{ 45325226Ssteve char *p; 4541556Srgrimes 4551556Srgrimes if ((p = malloc(strlen(s) + 1)) == NULL) 4561556Srgrimes error("Out of space"); 45717987Speter (void) strcpy(p, s); 4581556Srgrimes return p; 4591556Srgrimes} 460