ref: 12e226ac6798412271020d42645f69138715c519
dir: /utils/acid/print.c/
#include <lib9.h> #include <bio.h> #include <ctype.h> #include "mach.h" #define Extern extern #include "acid.h" static char *binop[] = { 0, 0, "*", /* [OMUL] "*", */ "/", /* [ODIV] "/", */ "%", /* [OMOD] "%", */ "+", /* [OADD] "+", */ "-", /* [OSUB] "-", */ ">>", /* [ORSH] ">>", */ "<<", /* [OLSH] "<<", */ "<", /* [OLT] "<", */ ">", /* [OGT] ">", */ "<=", /* [OLEQ] "<=", */ ">=", /* [OGEQ] ">=", */ "==", /* [OEQ] "==", */ "!=", /* [ONEQ] "!=", */ "&", /* [OLAND] "&", */ "^", /* [OXOR] "^", */ "|", /* [OLOR] "|", */ "&&", /* [OCAND] "&&", */ "||", /* [OCOR] "||", */ " = ", /* [OASGN] " = ", */ }; static char *tabs = "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t"; char *typenames[] = { "integer", /* [TINT] "integer", */ "float", /* [TFLOAT] "float", */ "string", /* [TSTRING] "string", */ "list", /* [TLIST] "list", */ "code", /* [TCODE] "code", */ }; int cmp(void *a, void *b) { return strcmp(*(char**)a, *(char**)b); } void fundefs(void) { Lsym *l; char **vec; int i, j, n, max, col, f, g, s; max = 0; f = 0; g = 100; vec = gmalloc(sizeof(char*)*g); if(vec == 0) fatal("out of memory"); for(i = 0; i < Hashsize; i++) { for(l = hash[i]; l; l = l->hash) { if(l->proc == 0 && l->builtin == 0) continue; n = strlen(l->name); if(n > max) max = n; if(f >= g) { g *= 2; vec = realloc(vec, sizeof(char*)*g); if(vec == 0) fatal("out of memory"); } vec[f++] = l->name; } } qsort(vec, f, sizeof(char*), cmp); max++; col = 60/max; s = (f+col-1)/col; for(i = 0; i < s; i++) { for(j = i; j < f; j += s) Bprint(bout, "%-*s", max, vec[j]); Bprint(bout, "\n"); } } void whatis(Lsym *l) { int t; int def; Type *ti; if(l == 0) { fundefs(); return; } def = 0; if(l->v->set) { t = l->v->type; Bprint(bout, "%s variable", typenames[t]); if(t == TINT || t == TFLOAT) Bprint(bout, " format %c", l->v->vstore.fmt); if(l->v->vstore.comt) Bprint(bout, " complex %s", l->v->vstore.comt->base->name); Bputc(bout, '\n'); def = 1; } if(l->lt) { Bprint(bout, "complex %s {\n", l->name); for(ti = l->lt; ti; ti = ti->next) { if(ti->type) { if(ti->fmt == 'a') { Bprint(bout, "\t%s %d %s;\n", ti->type->name, ti->offset, ti->tag->name); } else { Bprint(bout, "\t'%c' %s %d %s;\n", ti->fmt, ti->type->name, ti->offset, ti->tag->name); } } else Bprint(bout, "\t'%c' %d %s;\n", ti->fmt, ti->offset, ti->tag->name); } Bprint(bout, "};\n"); def = 1; } if(l->proc) { Bprint(bout, "defn %s(", l->name); pexpr(l->proc->left); Bprint(bout, ") {\n"); pcode(l->proc->right, 1); Bprint(bout, "}\n"); def = 1; } if(l->builtin) { Bprint(bout, "builtin function\n"); def = 1; } if(def == 0) Bprint(bout, "%s is undefined\n", l->name); } void slist(Node *n, int d) { if(n == 0) return; if(n->op == OLIST) Bprint(bout, "%.*s{\n", d-1, tabs); pcode(n, d); if(n->op == OLIST) Bprint(bout, "%.*s}\n", d-1, tabs); } void pcode(Node *n, int d) { Node *r, *l; if(n == 0) return; r = n->right; l = n->left; switch(n->op) { default: Bprint(bout, "%.*s", d, tabs); pexpr(n); Bprint(bout, ";\n"); break; case OLIST: pcode(n->left, d); pcode(n->right, d); break; case OLOCAL: Bprint(bout, "%.*slocal", d, tabs); while(l) { Bprint(bout, " %s", l->sym->name); l = l->left; if(l == 0) Bprint(bout, ";\n"); else Bprint(bout, ","); } break; case OCOMPLEX: Bprint(bout, "%.*scomplex %s %s;\n", d, tabs, n->sym->name, l->sym->name); break; case OIF: Bprint(bout, "%.*sif ", d, tabs); pexpr(l); d++; Bprint(bout, "%.*sthen\n", d, tabs); if(r && r->op == OELSE) { slist(r->left, d); Bprint(bout, "%.*selse\n", d-1, tabs); slist(r->right, d); } else slist(r, d); break; case OWHILE: Bprint(bout, "%.*swhile ", d, tabs); pexpr(l); d++; Bprint(bout, "%.*sdo\n", d, tabs); slist(r, d); break; case ORET: Bprint(bout, "%.*sreturn ", d, tabs); pexpr(l); Bprint(bout, ";\n"); break; case ODO: Bprint(bout, "%.*sloop ", d, tabs); pexpr(l->left); Bprint(bout, ", "); pexpr(l->right); Bprint(bout, " do\n"); slist(r, d+1); } } void pexpr(Node *n) { Node *r, *l; if(n == 0) return; r = n->right; l = n->left; switch(n->op) { case ONAME: Bprint(bout, "%s", n->sym->name); break; case OCONST: switch(n->type) { case TINT: Bprint(bout, "%d", (int)n->nstore.u0.sival); break; case TFLOAT: Bprint(bout, "%g", n->nstore.u0.sfval); break; case TSTRING: pstr(n->nstore.u0.sstring); break; case TLIST: break; } break; case OMUL: case ODIV: case OMOD: case OADD: case OSUB: case ORSH: case OLSH: case OLT: case OGT: case OLEQ: case OGEQ: case OEQ: case ONEQ: case OLAND: case OXOR: case OLOR: case OCAND: case OCOR: Bputc(bout, '('); pexpr(l); Bprint(bout, binop[n->op]); pexpr(r); Bputc(bout, ')'); break; case OASGN: pexpr(l); Bprint(bout, binop[n->op]); pexpr(r); break; case OINDM: Bprint(bout, "*"); pexpr(l); break; case OEDEC: Bprint(bout, "--"); pexpr(l); break; case OEINC: Bprint(bout, "++"); pexpr(l); break; case OPINC: pexpr(l); Bprint(bout, "++"); break; case OPDEC: pexpr(l); Bprint(bout, "--"); break; case ONOT: Bprint(bout, "!"); pexpr(l); break; case OLIST: pexpr(l); if(r) { Bprint(bout, ","); pexpr(r); } break; case OCALL: pexpr(l); Bprint(bout, "("); pexpr(r); Bprint(bout, ")"); break; case OCTRUCT: Bprint(bout, "{"); pexpr(l); Bprint(bout, "}"); break; case OHEAD: Bprint(bout, "head "); pexpr(l); break; case OTAIL: Bprint(bout, "tail "); pexpr(l); break; case OAPPEND: Bprint(bout, "append "); pexpr(l); Bprint(bout, ","); pexpr(r); break; case ODELETE: Bprint(bout, "delete "); pexpr(l); Bprint(bout, ","); pexpr(r); break; case ORET: Bprint(bout, "return "); pexpr(l); break; case OINDEX: pexpr(l); Bprint(bout, "["); pexpr(r); Bprint(bout, "]"); break; case OINDC: Bprint(bout, "@"); pexpr(l); break; case ODOT: pexpr(l); Bprint(bout, ".%s", n->sym->name); break; case OFRAME: Bprint(bout, "%s:%s", n->sym->name, l->sym->name); break; case OCAST: Bprint(bout, "(%s)", n->sym->name); pexpr(l); break; case OFMT: pexpr(l); Bprint(bout, "\\%c", (int)r->nstore.u0.sival); break; case OEVAL: Bprint(bout, "eval "); pexpr(l); break; case OWHAT: Bprint(bout, "whatis"); if(n->sym) Bprint(bout, " %s", n->sym->name); break; } } void pstr(String *s) { int i, c; Bputc(bout, '"'); for(i = 0; i < s->len; i++) { c = s->string[i]; switch(c) { case '\0': c = '0'; break; case '\n': c = 'n'; break; case '\r': c = 'r'; break; case '\t': c = 't'; break; case '\b': c = 'b'; break; case '\f': c = 'f'; break; case '\a': c = 'a'; break; case '\v': c = 'v'; break; case '\\': c = '\\'; break; case '"': c = '"'; break; default: Bputc(bout, c); continue; } Bputc(bout, '\\'); Bputc(bout, c); } Bputc(bout, '"'); }