--- /dev/null
+/* mclex.c -- lexer for Windows mc files parser.
+ Copyright 2007
+ Free Software Foundation, Inc.
+
+ Written by Kai Tietz, Onevision.
+
+ This file is part of GNU Binutils.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+/* This is a lexer used by the Windows rc file parser.
+ It basically just recognized a bunch of keywords. */
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "bucomm.h"
+#include "libiberty.h"
+#include "safe-ctype.h"
+#include "windmc.h"
+#include "mcparse.h"
+
+#include <assert.h>
+
+/* Exported globals. */
+bfd_boolean mclex_want_nl = FALSE;
+bfd_boolean mclex_want_line = FALSE;
+bfd_boolean mclex_want_filename = FALSE;
+
+/* Local globals. */
+static unichar *input_stream = NULL;
+static unichar *input_stream_pos = NULL;
+static int input_line = 1;
+static const char *input_filename = NULL;
+
+void
+mc_set_content (const unichar *src)
+{
+ if (!src)
+ return;
+ input_stream = input_stream_pos = unichar_dup (src);
+}
+
+void
+mc_set_inputfile (const char *name)
+{
+ if (! name || *name == 0)
+ input_filename = "-";
+ else
+ {
+ const char *s1 = strrchr (name, '/');
+ const char *s2 = strrchr (name, '\\');
+
+ if (! s1)
+ s1 = s2;
+ if (s1 && s2 && s1 < s2)
+ s1 = s2;
+ if (! s1)
+ s1 = name;
+ else
+ s1++;
+ s1 = xstrdup (s1);
+ input_filename = s1;
+ }
+}
+
+static void
+show_msg (const char *kind, const char *msg, va_list argp)
+{
+ fprintf (stderr, "In %s at line %d: %s: ", input_filename, input_line, kind);
+ vfprintf (stderr, msg, argp);
+ fprintf (stderr, ".\n");
+}
+
+void
+mc_warn (const char *s, ...)
+{
+ va_list argp;
+ va_start (argp, s);
+ show_msg ("warning", s, argp);
+ va_end (argp);
+}
+
+void
+mc_fatal (const char *s, ...)
+{
+ va_list argp;
+ va_start (argp, s);
+ show_msg ("fatal", s, argp);
+ va_end (argp);
+ xexit (1);
+}
+
+
+int
+yyerror (const char *s, ...)
+{
+ va_list argp;
+ va_start (argp, s);
+ show_msg ("parser", s, argp);
+ va_end (argp);
+ return 1;
+}
+
+static unichar *
+get_diff (unichar *end, unichar *start)
+{
+ unichar *ret;
+ unichar save = *end;
+
+ *end = 0;
+ ret = unichar_dup (start);
+ *end = save;
+ return ret;
+}
+
+static rc_uint_type
+parse_digit (unichar ch)
+{
+ rc_uint_type base = 10, v = 0, c;
+
+ if (ch == '0')
+ {
+ base = 8;
+ switch (input_stream_pos[0])
+ {
+ case 'x': case 'X': base = 16; input_stream_pos++; break;
+ case 'o': case 'O': base = 8; input_stream_pos++; break;
+ case 'b': case 'B': base = 2; input_stream_pos++; break;
+ }
+ }
+ else
+ v = (rc_uint_type) (ch - '0');
+
+ while ((ch = input_stream_pos[0]) != 0)
+ {
+ if (ch >= 'A' && ch <= 'F')
+ c = (rc_uint_type) (ch - 'A') + 10;
+ else if (ch >= 'a' && ch <= 'f')
+ c = (rc_uint_type) (ch - 'a') + 10;
+ else if (ch >= '0' && ch <= '9')
+ c = (rc_uint_type) (ch - '0');
+ else
+ break;
+ v *= base;
+ v += c;
+ ++input_stream_pos;
+ }
+ if (input_stream_pos[0] == 'U' || input_stream_pos[0] == 'u')
+ input_stream_pos++;
+ if (input_stream_pos[0] == 'L' || input_stream_pos[0] == 'l')
+ input_stream_pos++;
+ if (input_stream_pos[0] == 'L' || input_stream_pos[0] == 'l')
+ input_stream_pos++;
+ return v;
+}
+
+static mc_keyword *keyword_top = NULL;
+
+const mc_keyword *
+enum_facility (int e)
+{
+ mc_keyword *h = keyword_top;
+
+ while (h != NULL)
+ {
+ while (h && strcmp (h->group_name, "facility") != 0)
+ h = h->next;
+ if (e == 0)
+ return h;
+ --e;
+ if (h)
+ h = h->next;
+ }
+ return h;
+}
+
+const mc_keyword *
+enum_severity (int e)
+{
+ mc_keyword *h = keyword_top;
+
+ while (h != NULL)
+ {
+ while (h && strcmp (h->group_name, "severity") != 0)
+ h = h->next;
+ if (e == 0)
+ return h;
+ --e;
+ if (h)
+ h = h->next;
+ }
+ return h;
+}
+
+static void
+mc_add_keyword_ascii (const char *sz, int rid, const char *grp, rc_uint_type nv, const char *sv)
+{
+ unichar *usz, *usv = NULL;
+ rc_uint_type usz_len;
+
+ unicode_from_codepage (&usz_len, &usz, sz, CP_ACP);
+ if (sv)
+ unicode_from_codepage (&usz_len, &usv, sv, CP_ACP);
+ mc_add_keyword (usz, rid, grp, nv, usv);
+}
+
+void
+mc_add_keyword (unichar *usz, int rid, const char *grp, rc_uint_type nv, unichar *sv)
+{
+ mc_keyword *p, *c, *n;
+ size_t len = unichar_len (usz);
+
+ c = keyword_top;
+ p = NULL;
+ while (c != NULL)
+ {
+ if (c->len > len)
+ break;
+ if (c->len == len)
+ {
+ int e = memcmp (usz, c->usz, len * sizeof (unichar));
+
+ if (e < 0)
+ break;
+ if (! e)
+ {
+ if (! strcmp (grp, "keyword") || strcmp (c->group_name, grp) != 0)
+ fatal (_("Duplicate symbol entered into keyword list."));
+ c->rid = rid;
+ c->nval = nv;
+ c->sval = (!sv ? NULL : unichar_dup (sv));
+ if (! strcmp (grp, "language"))
+ {
+ const wind_language_t *lag = wind_find_language_by_id ((unsigned) nv);
+
+ if (lag == NULL)
+ fatal ("Language ident 0x%lx is not resolvable.\n", (long) nv);
+ memcpy (&c->lang_info, lag, sizeof (*lag));
+ }
+ return;
+ }
+ }
+ c = (p = c)->next;
+ }
+ n = xmalloc (sizeof (mc_keyword));
+ n->next = c;
+ n->len = len;
+ n->group_name = grp;
+ n->usz = usz;
+ n->rid = rid;
+ n->nval = nv;
+ n->sval = (!sv ? NULL : unichar_dup (sv));
+ if (! strcmp (grp, "language"))
+ {
+ const wind_language_t *lag = wind_find_language_by_id ((unsigned) nv);
+ if (lag == NULL)
+ fatal ("Language ident 0x%lx is not resolvable.\n", (long) nv);
+ memcpy (&n->lang_info, lag, sizeof (*lag));
+ }
+ if (! p)
+ keyword_top = n;
+ else
+ p->next = n;
+}
+
+static int
+mc_token (const unichar *t, size_t len)
+{
+ static int was_init = 0;
+ mc_keyword *k;
+
+ if (! was_init)
+ {
+ was_init = 1;
+ mc_add_keyword_ascii ("OutputBase", MCOUTPUTBASE, "keyword", 0, NULL);
+ mc_add_keyword_ascii ("MessageIdTypedef", MCMESSAGEIDTYPEDEF, "keyword", 0, NULL);
+ mc_add_keyword_ascii ("SeverityNames", MCSEVERITYNAMES, "keyword", 0, NULL);
+ mc_add_keyword_ascii ("FacilityNames", MCFACILITYNAMES, "keyword", 0, NULL);
+ mc_add_keyword_ascii ("LanguageNames", MCLANGUAGENAMES, "keyword", 0, NULL);
+ mc_add_keyword_ascii ("MessageId", MCMESSAGEID, "keyword", 0, NULL);
+ mc_add_keyword_ascii ("Severity", MCSEVERITY, "keyword", 0, NULL);
+ mc_add_keyword_ascii ("Facility", MCFACILITY, "keyword", 0, NULL);
+ mc_add_keyword_ascii ("SymbolicName", MCSYMBOLICNAME, "keyword", 0, NULL);
+ mc_add_keyword_ascii ("Language", MCLANGUAGE, "keyword", 0, NULL);
+ mc_add_keyword_ascii ("Success", MCTOKEN, "severity", 0, NULL);
+ mc_add_keyword_ascii ("Informational", MCTOKEN, "severity", 1, NULL);
+ mc_add_keyword_ascii ("Warning", MCTOKEN, "severity", 2, NULL);
+ mc_add_keyword_ascii ("Error", MCTOKEN, "severity", 3, NULL);
+ mc_add_keyword_ascii ("System", MCTOKEN, "facility", 0xff, NULL);
+ mc_add_keyword_ascii ("Application", MCTOKEN, "facility", 0xfff, NULL);
+ mc_add_keyword_ascii ("English", MCTOKEN, "language", 0x409, "MSG00001");
+ }
+ k = keyword_top;
+ if (!len || !t || *t == 0)
+ return -1;
+ while (k != NULL)
+ {
+ if (k->len > len)
+ break;
+ if (k->len == len)
+ {
+ if (! memcmp (k->usz, t, len * sizeof (unichar)))
+ {
+ if (k->rid == MCTOKEN)
+ yylval.tok = k;
+ return k->rid;
+ }
+ }
+ k = k->next;
+ }
+ return -1;
+}
+
+int
+yylex (void)
+{
+ unichar *start_token;
+ unichar ch;
+
+ if (! input_stream_pos)
+ {
+ fatal ("Input stream not setuped.\n");
+ return -1;
+ }
+ if (mclex_want_line)
+ {
+ start_token = input_stream_pos;
+ if (input_stream_pos[0] == '.'
+ && (input_stream_pos[1] == '\n'
+ || (input_stream_pos[1] == '\r' && input_stream_pos[2] == '\n')))
+ {
+ mclex_want_line = FALSE;
+ while (input_stream_pos[0] != 0 && input_stream_pos[0] != '\n')
+ ++input_stream_pos;
+ if (input_stream_pos[0] == '\n')
+ ++input_stream_pos;
+ return MCENDLINE;
+ }
+ while (input_stream_pos[0] != 0 && input_stream_pos[0] != '\n')
+ ++input_stream_pos;
+ if (input_stream_pos[0] == '\n')
+ ++input_stream_pos;
+ yylval.ustr = get_diff (input_stream_pos, start_token);
+ return MCLINE;
+ }
+ while ((ch = input_stream_pos[0]) <= 0x20)
+ {
+ if (ch == 0)
+ return -1;
+ ++input_stream_pos;
+ if (ch == '\n')
+ input_line += 1;
+ if (mclex_want_nl && ch == '\n')
+ {
+ mclex_want_nl = FALSE;
+ return NL;
+ }
+ }
+ start_token = input_stream_pos;
+ ++input_stream_pos;
+ if (mclex_want_filename)
+ {
+ mclex_want_filename = FALSE;
+ if (ch == '"')
+ {
+ start_token++;
+ while ((ch = input_stream_pos[0]) != 0)
+ {
+ if (ch == '"')
+ break;
+ ++input_stream_pos;
+ }
+ yylval.ustr = get_diff (input_stream_pos, start_token);
+ if (ch == '"')
+ ++input_stream_pos;
+ }
+ else
+ {
+ while ((ch = input_stream_pos[0]) != 0)
+ {
+ if (ch <= 0x20 || ch == ')')
+ break;
+ ++input_stream_pos;
+ }
+ yylval.ustr = get_diff (input_stream_pos, start_token);
+ }
+ return MCFILENAME;
+ }
+ switch (ch)
+ {
+ case ';':
+ ++start_token;
+ while (input_stream_pos[0] != '\n' && input_stream_pos[0] != 0)
+ ++input_stream_pos;
+ if (input_stream_pos[0] == '\n')
+ input_stream_pos++;
+ yylval.ustr = get_diff (input_stream_pos, start_token);
+ return MCCOMMENT;
+ case '=':
+ return '=';
+ case '(':
+ return '(';
+ case ')':
+ return ')';
+ case '+':
+ return '+';
+ case ':':
+ return ':';
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ yylval.ival = parse_digit (ch);
+ return MCNUMBER;
+ default:
+ if (ch >= 0x40)
+ {
+ int ret;
+ while (input_stream_pos[0] >= 0x40 || (input_stream_pos[0] >= '0' && input_stream_pos[0] <= '9'))
+ ++input_stream_pos;
+ ret = mc_token (start_token, (size_t) (input_stream_pos - start_token));
+ if (ret != -1)
+ return ret;
+ yylval.ustr = get_diff (input_stream_pos, start_token);
+ return MCIDENT;
+ }
+ yyerror ("illegal character 0x%x.", ch);
+ }
+ return -1;
+}
projects / deliverable / binutils-gdb.git / blobdiff