diff options
-rw-r--r-- | src/depfile_parser.cc | 476 | ||||
-rw-r--r-- | src/lexer.cc | 1734 |
2 files changed, 1105 insertions, 1105 deletions
diff --git a/src/depfile_parser.cc b/src/depfile_parser.cc index c5bc291..7268f31 100644 --- a/src/depfile_parser.cc +++ b/src/depfile_parser.cc @@ -1,238 +1,238 @@ -/* Generated by re2c 0.13.5 */
-// Copyright 2011 Google Inc. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "depfile_parser.h"
-
-// A note on backslashes in Makefiles, from reading the docs:
-// Backslash-newline is the line continuation character.
-// Backslash-# escapes a # (otherwise meaningful as a comment start).
-// Backslash-% escapes a % (otherwise meaningful as a special).
-// Finally, quoting the GNU manual, "Backslashes that are not in danger
-// of quoting ‘%’ characters go unmolested."
-// How do you end a line with a backslash? The netbsd Make docs suggest
-// reading the result of a shell command echoing a backslash!
-//
-// Rather than implement all of above, we do a simpler thing here:
-// Backslashes escape a set of characters (see "escapes" defined below),
-// otherwise they are passed through verbatim.
-// If anyone actually has depfiles that rely on the more complicated
-// behavior we can adjust this.
-bool DepfileParser::Parse(string* content, string* err) {
- // in: current parser input point.
- // end: end of input.
- // parsing_targets: whether we are parsing targets or dependencies.
- char* in = &(*content)[0];
- char* end = in + content->size();
- bool parsing_targets = true;
- while (in < end) {
- // out: current output point (typically same as in, but can fall behind
- // as we de-escape backslashes).
- char* out = in;
- // filename: start of the current parsed filename.
- char* filename = out;
- for (;;) {
- // start: beginning of the current parsed span.
- const char* start = in;
-
- {
- char yych;
- static const unsigned char yybm[] = {
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 128, 0, 0, 0, 0, 0, 0,
- 128, 128, 0, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 0, 0, 128, 0, 0,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 0, 0, 0, 0, 128,
- 0, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 0, 128, 128, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- };
-
- yych = *in;
- if (yych <= '=') {
- if (yych <= '$') {
- if (yych <= ' ') {
- if (yych <= 0x00) goto yy7;
- goto yy9;
- } else {
- if (yych <= '!') goto yy5;
- if (yych <= '#') goto yy9;
- goto yy4;
- }
- } else {
- if (yych <= '*') {
- if (yych <= '\'') goto yy9;
- if (yych <= ')') goto yy5;
- goto yy9;
- } else {
- if (yych <= ':') goto yy5;
- if (yych <= '<') goto yy9;
- goto yy5;
- }
- }
- } else {
- if (yych <= '^') {
- if (yych <= 'Z') {
- if (yych <= '?') goto yy9;
- goto yy5;
- } else {
- if (yych != '\\') goto yy9;
- }
- } else {
- if (yych <= '{') {
- if (yych == '`') goto yy9;
- goto yy5;
- } else {
- if (yych <= '|') goto yy9;
- if (yych <= '~') goto yy5;
- goto yy9;
- }
- }
- }
- ++in;
- if ((yych = *in) <= '"') {
- if (yych <= '\f') {
- if (yych <= 0x00) goto yy3;
- if (yych != '\n') goto yy14;
- } else {
- if (yych <= '\r') goto yy3;
- if (yych == ' ') goto yy16;
- goto yy14;
- }
- } else {
- if (yych <= 'Z') {
- if (yych <= '#') goto yy16;
- if (yych == '*') goto yy16;
- goto yy14;
- } else {
- if (yych <= '\\') goto yy16;
- if (yych == '|') goto yy16;
- goto yy14;
- }
- }
-yy3:
- {
- // For any other character (e.g. whitespace), swallow it here,
- // allowing the outer logic to loop around again.
- break;
- }
-yy4:
- yych = *++in;
- if (yych == '$') goto yy12;
- goto yy3;
-yy5:
- ++in;
- yych = *in;
- goto yy11;
-yy6:
- {
- // Got a span of plain text.
- int len = (int)(in - start);
- // Need to shift it over if we're overwriting backslashes.
- if (out < start)
- memmove(out, start, len);
- out += len;
- continue;
- }
-yy7:
- ++in;
- {
- break;
- }
-yy9:
- yych = *++in;
- goto yy3;
-yy10:
- ++in;
- yych = *in;
-yy11:
- if (yybm[0+yych] & 128) {
- goto yy10;
- }
- goto yy6;
-yy12:
- ++in;
- {
- // De-escape dollar character.
- *out++ = '$';
- continue;
- }
-yy14:
- ++in;
- {
- // Let backslash before other characters through verbatim.
- *out++ = '\\';
- *out++ = yych;
- continue;
- }
-yy16:
- ++in;
- {
- // De-escape backslashed character.
- *out++ = yych;
- continue;
- }
- }
-
- }
-
- int len = (int)(out - filename);
- const bool is_target = parsing_targets;
- if (len > 0 && filename[len - 1] == ':') {
- len--; // Strip off trailing colon, if any.
- parsing_targets = false;
- }
-
- if (len == 0)
- continue;
-
- if (!is_target) {
- ins_.push_back(StringPiece(filename, len));
- } else if (!out_.str_) {
- out_ = StringPiece(filename, len);
- } else if (out_ != StringPiece(filename, len)) {
- *err = "depfile has multiple output paths";
- return false;
- }
- }
- if (parsing_targets) {
- *err = "expected ':' in depfile";
- return false;
- }
- return true;
-}
+/* Generated by re2c 0.13.5 */ +// Copyright 2011 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include "depfile_parser.h" + +// A note on backslashes in Makefiles, from reading the docs: +// Backslash-newline is the line continuation character. +// Backslash-# escapes a # (otherwise meaningful as a comment start). +// Backslash-% escapes a % (otherwise meaningful as a special). +// Finally, quoting the GNU manual, "Backslashes that are not in danger +// of quoting ‘%’ characters go unmolested." +// How do you end a line with a backslash? The netbsd Make docs suggest +// reading the result of a shell command echoing a backslash! +// +// Rather than implement all of above, we do a simpler thing here: +// Backslashes escape a set of characters (see "escapes" defined below), +// otherwise they are passed through verbatim. +// If anyone actually has depfiles that rely on the more complicated +// behavior we can adjust this. +bool DepfileParser::Parse(string* content, string* err) { + // in: current parser input point. + // end: end of input. + // parsing_targets: whether we are parsing targets or dependencies. + char* in = &(*content)[0]; + char* end = in + content->size(); + bool parsing_targets = true; + while (in < end) { + // out: current output point (typically same as in, but can fall behind + // as we de-escape backslashes). + char* out = in; + // filename: start of the current parsed filename. + char* filename = out; + for (;;) { + // start: beginning of the current parsed span. + const char* start = in; + + { + char yych; + static const unsigned char yybm[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 128, 0, 0, 0, 0, 0, 0, + 128, 128, 0, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 0, 0, 128, 0, 0, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 0, 0, 0, 0, 128, + 0, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 0, 128, 128, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + }; + + yych = *in; + if (yych <= '=') { + if (yych <= '$') { + if (yych <= ' ') { + if (yych <= 0x00) goto yy7; + goto yy9; + } else { + if (yych <= '!') goto yy5; + if (yych <= '#') goto yy9; + goto yy4; + } + } else { + if (yych <= '*') { + if (yych <= '\'') goto yy9; + if (yych <= ')') goto yy5; + goto yy9; + } else { + if (yych <= ':') goto yy5; + if (yych <= '<') goto yy9; + goto yy5; + } + } + } else { + if (yych <= '^') { + if (yych <= 'Z') { + if (yych <= '?') goto yy9; + goto yy5; + } else { + if (yych != '\\') goto yy9; + } + } else { + if (yych <= '{') { + if (yych == '`') goto yy9; + goto yy5; + } else { + if (yych <= '|') goto yy9; + if (yych <= '~') goto yy5; + goto yy9; + } + } + } + ++in; + if ((yych = *in) <= '"') { + if (yych <= '\f') { + if (yych <= 0x00) goto yy3; + if (yych != '\n') goto yy14; + } else { + if (yych <= '\r') goto yy3; + if (yych == ' ') goto yy16; + goto yy14; + } + } else { + if (yych <= 'Z') { + if (yych <= '#') goto yy16; + if (yych == '*') goto yy16; + goto yy14; + } else { + if (yych <= '\\') goto yy16; + if (yych == '|') goto yy16; + goto yy14; + } + } +yy3: + { + // For any other character (e.g. whitespace), swallow it here, + // allowing the outer logic to loop around again. + break; + } +yy4: + yych = *++in; + if (yych == '$') goto yy12; + goto yy3; +yy5: + ++in; + yych = *in; + goto yy11; +yy6: + { + // Got a span of plain text. + int len = (int)(in - start); + // Need to shift it over if we're overwriting backslashes. + if (out < start) + memmove(out, start, len); + out += len; + continue; + } +yy7: + ++in; + { + break; + } +yy9: + yych = *++in; + goto yy3; +yy10: + ++in; + yych = *in; +yy11: + if (yybm[0+yych] & 128) { + goto yy10; + } + goto yy6; +yy12: + ++in; + { + // De-escape dollar character. + *out++ = '$'; + continue; + } +yy14: + ++in; + { + // Let backslash before other characters through verbatim. + *out++ = '\\'; + *out++ = yych; + continue; + } +yy16: + ++in; + { + // De-escape backslashed character. + *out++ = yych; + continue; + } + } + + } + + int len = (int)(out - filename); + const bool is_target = parsing_targets; + if (len > 0 && filename[len - 1] == ':') { + len--; // Strip off trailing colon, if any. + parsing_targets = false; + } + + if (len == 0) + continue; + + if (!is_target) { + ins_.push_back(StringPiece(filename, len)); + } else if (!out_.str_) { + out_ = StringPiece(filename, len); + } else if (out_ != StringPiece(filename, len)) { + *err = "depfile has multiple output paths"; + return false; + } + } + if (parsing_targets) { + *err = "expected ':' in depfile"; + return false; + } + return true; +} diff --git a/src/lexer.cc b/src/lexer.cc index 81264bd..37b8678 100644 --- a/src/lexer.cc +++ b/src/lexer.cc @@ -1,867 +1,867 @@ -/* Generated by re2c 0.13.5 */
-// Copyright 2011 Google Inc. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "lexer.h"
-
-#include <stdio.h>
-
-#include "eval_env.h"
-#include "util.h"
-
-bool Lexer::Error(const string& message, string* err) {
- // Compute line/column.
- int line = 1;
- const char* context = input_.str_;
- for (const char* p = input_.str_; p < last_token_; ++p) {
- if (*p == '\n') {
- ++line;
- context = p + 1;
- }
- }
- int col = last_token_ ? (int)(last_token_ - context) : 0;
-
- char buf[1024];
- snprintf(buf, sizeof(buf), "%s:%d: ", filename_.AsString().c_str(), line);
- *err = buf;
- *err += message + "\n";
-
- // Add some context to the message.
- const int kTruncateColumn = 72;
- if (col > 0 && col < kTruncateColumn) {
- int len;
- bool truncated = true;
- for (len = 0; len < kTruncateColumn; ++len) {
- if (context[len] == 0 || context[len] == '\n') {
- truncated = false;
- break;
- }
- }
- *err += string(context, len);
- if (truncated)
- *err += "...";
- *err += "\n";
- *err += string(col, ' ');
- *err += "^ near here";
- }
-
- return false;
-}
-
-Lexer::Lexer(const char* input) {
- Start("input", input);
-}
-
-void Lexer::Start(StringPiece filename, StringPiece input) {
- filename_ = filename;
- input_ = input;
- ofs_ = input_.str_;
- last_token_ = NULL;
-}
-
-const char* Lexer::TokenName(Token t) {
- switch (t) {
- case ERROR: return "lexing error";
- case BUILD: return "'build'";
- case COLON: return "':'";
- case DEFAULT: return "'default'";
- case EQUALS: return "'='";
- case IDENT: return "identifier";
- case INCLUDE: return "'include'";
- case INDENT: return "indent";
- case NEWLINE: return "newline";
- case PIPE2: return "'||'";
- case PIPE: return "'|'";
- case POOL: return "'pool'";
- case RULE: return "'rule'";
- case SUBNINJA: return "'subninja'";
- case TEOF: return "eof";
- }
- return NULL; // not reached
-}
-
-const char* Lexer::TokenErrorHint(Token expected) {
- switch (expected) {
- case COLON:
- return " ($ also escapes ':')";
- default:
- return "";
- }
-}
-
-string Lexer::DescribeLastError() {
- if (last_token_) {
- switch (last_token_[0]) {
- case '\t':
- return "tabs are not allowed, use spaces";
- }
- }
- return "lexing error";
-}
-
-void Lexer::UnreadToken() {
- ofs_ = last_token_;
-}
-
-Lexer::Token Lexer::ReadToken() {
- const char* p = ofs_;
- const char* q;
- const char* start;
- Lexer::Token token;
- for (;;) {
- start = p;
-
-{
- unsigned char yych;
- unsigned int yyaccept = 0;
- static const unsigned char yybm[] = {
- 0, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 0, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 192, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 96, 96, 64,
- 96, 96, 96, 96, 96, 96, 96, 96,
- 96, 96, 64, 64, 64, 64, 64, 64,
- 64, 96, 96, 96, 96, 96, 96, 96,
- 96, 96, 96, 96, 96, 96, 96, 96,
- 96, 96, 96, 96, 96, 96, 96, 96,
- 96, 96, 96, 64, 64, 64, 64, 96,
- 64, 96, 96, 96, 96, 96, 96, 96,
- 96, 96, 96, 96, 96, 96, 96, 96,
- 96, 96, 96, 96, 96, 96, 96, 96,
- 96, 96, 96, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64,
- };
-
- yych = *p;
- if (yych <= 'Z') {
- if (yych <= '#') {
- if (yych <= '\f') {
- if (yych <= 0x00) goto yy23;
- if (yych == '\n') goto yy7;
- goto yy25;
- } else {
- if (yych <= 0x1F) {
- if (yych <= '\r') goto yy6;
- goto yy25;
- } else {
- if (yych <= ' ') goto yy2;
- if (yych <= '"') goto yy25;
- goto yy4;
- }
- }
- } else {
- if (yych <= '9') {
- if (yych <= ',') goto yy25;
- if (yych == '/') goto yy25;
- goto yy22;
- } else {
- if (yych <= '<') {
- if (yych <= ':') goto yy16;
- goto yy25;
- } else {
- if (yych <= '=') goto yy14;
- if (yych <= '@') goto yy25;
- goto yy22;
- }
- }
- }
- } else {
- if (yych <= 'i') {
- if (yych <= 'a') {
- if (yych == '_') goto yy22;
- if (yych <= '`') goto yy25;
- goto yy22;
- } else {
- if (yych <= 'c') {
- if (yych <= 'b') goto yy9;
- goto yy22;
- } else {
- if (yych <= 'd') goto yy13;
- if (yych <= 'h') goto yy22;
- goto yy20;
- }
- }
- } else {
- if (yych <= 'r') {
- if (yych == 'p') goto yy11;
- if (yych <= 'q') goto yy22;
- goto yy12;
- } else {
- if (yych <= 'z') {
- if (yych <= 's') goto yy21;
- goto yy22;
- } else {
- if (yych == '|') goto yy18;
- goto yy25;
- }
- }
- }
- }
-yy2:
- yyaccept = 0;
- yych = *(q = ++p);
- goto yy73;
-yy3:
- { token = INDENT; break; }
-yy4:
- yyaccept = 1;
- yych = *(q = ++p);
- if (yych >= 0x01) goto yy68;
-yy5:
- { token = ERROR; break; }
-yy6:
- yych = *++p;
- if (yych == '\n') goto yy65;
- goto yy5;
-yy7:
- ++p;
-yy8:
- { token = NEWLINE; break; }
-yy9:
- ++p;
- if ((yych = *p) == 'u') goto yy60;
- goto yy27;
-yy10:
- { token = IDENT; break; }
-yy11:
- yych = *++p;
- if (yych == 'o') goto yy56;
- goto yy27;
-yy12:
- yych = *++p;
- if (yych == 'u') goto yy52;
- goto yy27;
-yy13:
- yych = *++p;
- if (yych == 'e') goto yy45;
- goto yy27;
-yy14:
- ++p;
- { token = EQUALS; break; }
-yy16:
- ++p;
- { token = COLON; break; }
-yy18:
- ++p;
- if ((yych = *p) == '|') goto yy43;
- { token = PIPE; break; }
-yy20:
- yych = *++p;
- if (yych == 'n') goto yy36;
- goto yy27;
-yy21:
- yych = *++p;
- if (yych == 'u') goto yy28;
- goto yy27;
-yy22:
- yych = *++p;
- goto yy27;
-yy23:
- ++p;
- { token = TEOF; break; }
-yy25:
- yych = *++p;
- goto yy5;
-yy26:
- ++p;
- yych = *p;
-yy27:
- if (yybm[0+yych] & 32) {
- goto yy26;
- }
- goto yy10;
-yy28:
- yych = *++p;
- if (yych != 'b') goto yy27;
- yych = *++p;
- if (yych != 'n') goto yy27;
- yych = *++p;
- if (yych != 'i') goto yy27;
- yych = *++p;
- if (yych != 'n') goto yy27;
- yych = *++p;
- if (yych != 'j') goto yy27;
- yych = *++p;
- if (yych != 'a') goto yy27;
- ++p;
- if (yybm[0+(yych = *p)] & 32) {
- goto yy26;
- }
- { token = SUBNINJA; break; }
-yy36:
- yych = *++p;
- if (yych != 'c') goto yy27;
- yych = *++p;
- if (yych != 'l') goto yy27;
- yych = *++p;
- if (yych != 'u') goto yy27;
- yych = *++p;
- if (yych != 'd') goto yy27;
- yych = *++p;
- if (yych != 'e') goto yy27;
- ++p;
- if (yybm[0+(yych = *p)] & 32) {
- goto yy26;
- }
- { token = INCLUDE; break; }
-yy43:
- ++p;
- { token = PIPE2; break; }
-yy45:
- yych = *++p;
- if (yych != 'f') goto yy27;
- yych = *++p;
- if (yych != 'a') goto yy27;
- yych = *++p;
- if (yych != 'u') goto yy27;
- yych = *++p;
- if (yych != 'l') goto yy27;
- yych = *++p;
- if (yych != 't') goto yy27;
- ++p;
- if (yybm[0+(yych = *p)] & 32) {
- goto yy26;
- }
- { token = DEFAULT; break; }
-yy52:
- yych = *++p;
- if (yych != 'l') goto yy27;
- yych = *++p;
- if (yych != 'e') goto yy27;
- ++p;
- if (yybm[0+(yych = *p)] & 32) {
- goto yy26;
- }
- { token = RULE; break; }
-yy56:
- yych = *++p;
- if (yych != 'o') goto yy27;
- yych = *++p;
- if (yych != 'l') goto yy27;
- ++p;
- if (yybm[0+(yych = *p)] & 32) {
- goto yy26;
- }
- { token = POOL; break; }
-yy60:
- yych = *++p;
- if (yych != 'i') goto yy27;
- yych = *++p;
- if (yych != 'l') goto yy27;
- yych = *++p;
- if (yych != 'd') goto yy27;
- ++p;
- if (yybm[0+(yych = *p)] & 32) {
- goto yy26;
- }
- { token = BUILD; break; }
-yy65:
- ++p;
- { token = NEWLINE; break; }
-yy67:
- ++p;
- yych = *p;
-yy68:
- if (yybm[0+yych] & 64) {
- goto yy67;
- }
- if (yych >= 0x01) goto yy70;
-yy69:
- p = q;
- if (yyaccept <= 0) {
- goto yy3;
- } else {
- goto yy5;
- }
-yy70:
- ++p;
- { continue; }
-yy72:
- yyaccept = 0;
- q = ++p;
- yych = *p;
-yy73:
- if (yybm[0+yych] & 128) {
- goto yy72;
- }
- if (yych <= '\f') {
- if (yych != '\n') goto yy3;
- } else {
- if (yych <= '\r') goto yy75;
- if (yych == '#') goto yy67;
- goto yy3;
- }
- yych = *++p;
- goto yy8;
-yy75:
- ++p;
- if ((yych = *p) == '\n') goto yy65;
- goto yy69;
-}
-
- }
-
- last_token_ = start;
- ofs_ = p;
- if (token != NEWLINE && token != TEOF)
- EatWhitespace();
- return token;
-}
-
-bool Lexer::PeekToken(Token token) {
- Token t = ReadToken();
- if (t == token)
- return true;
- UnreadToken();
- return false;
-}
-
-void Lexer::EatWhitespace() {
- const char* p = ofs_;
- const char* q;
- for (;;) {
- ofs_ = p;
-
-{
- unsigned char yych;
- static const unsigned char yybm[] = {
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 128, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- };
- yych = *p;
- if (yych <= ' ') {
- if (yych <= 0x00) goto yy82;
- if (yych <= 0x1F) goto yy84;
- } else {
- if (yych == '$') goto yy80;
- goto yy84;
- }
- ++p;
- yych = *p;
- goto yy92;
-yy79:
- { continue; }
-yy80:
- yych = *(q = ++p);
- if (yych == '\n') goto yy85;
- if (yych == '\r') goto yy87;
-yy81:
- { break; }
-yy82:
- ++p;
- { break; }
-yy84:
- yych = *++p;
- goto yy81;
-yy85:
- ++p;
- { continue; }
-yy87:
- yych = *++p;
- if (yych == '\n') goto yy89;
- p = q;
- goto yy81;
-yy89:
- ++p;
- { continue; }
-yy91:
- ++p;
- yych = *p;
-yy92:
- if (yybm[0+yych] & 128) {
- goto yy91;
- }
- goto yy79;
-}
-
- }
-}
-
-bool Lexer::ReadIdent(string* out) {
- const char* p = ofs_;
- for (;;) {
- const char* start = p;
-
-{
- unsigned char yych;
- static const unsigned char yybm[] = {
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 128, 128, 0,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 0, 0, 0, 0, 0, 0,
- 0, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 0, 0, 0, 0, 128,
- 0, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- };
- yych = *p;
- if (yych <= '@') {
- if (yych <= '.') {
- if (yych <= ',') goto yy97;
- } else {
- if (yych <= '/') goto yy97;
- if (yych >= ':') goto yy97;
- }
- } else {
- if (yych <= '_') {
- if (yych <= 'Z') goto yy95;
- if (yych <= '^') goto yy97;
- } else {
- if (yych <= '`') goto yy97;
- if (yych >= '{') goto yy97;
- }
- }
-yy95:
- ++p;
- yych = *p;
- goto yy100;
-yy96:
- {
- out->assign(start, p - start);
- break;
- }
-yy97:
- ++p;
- { return false; }
-yy99:
- ++p;
- yych = *p;
-yy100:
- if (yybm[0+yych] & 128) {
- goto yy99;
- }
- goto yy96;
-}
-
- }
- ofs_ = p;
- EatWhitespace();
- return true;
-}
-
-bool Lexer::ReadEvalString(EvalString* eval, bool path, string* err) {
- const char* p = ofs_;
- const char* q;
- const char* start;
- for (;;) {
- start = p;
-
-{
- unsigned char yych;
- static const unsigned char yybm[] = {
- 0, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 0, 128, 128, 0, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 16, 128, 128, 128, 0, 128, 128, 128,
- 128, 128, 128, 128, 128, 224, 160, 128,
- 224, 224, 224, 224, 224, 224, 224, 224,
- 224, 224, 0, 128, 128, 128, 128, 128,
- 128, 224, 224, 224, 224, 224, 224, 224,
- 224, 224, 224, 224, 224, 224, 224, 224,
- 224, 224, 224, 224, 224, 224, 224, 224,
- 224, 224, 224, 128, 128, 128, 128, 224,
- 128, 224, 224, 224, 224, 224, 224, 224,
- 224, 224, 224, 224, 224, 224, 224, 224,
- 224, 224, 224, 224, 224, 224, 224, 224,
- 224, 224, 224, 128, 0, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- };
- yych = *p;
- if (yych <= ' ') {
- if (yych <= '\n') {
- if (yych <= 0x00) goto yy110;
- if (yych >= '\n') goto yy107;
- } else {
- if (yych == '\r') goto yy105;
- if (yych >= ' ') goto yy107;
- }
- } else {
- if (yych <= '9') {
- if (yych == '$') goto yy109;
- } else {
- if (yych <= ':') goto yy107;
- if (yych == '|') goto yy107;
- }
- }
- ++p;
- yych = *p;
- goto yy140;
-yy104:
- {
- eval->AddText(StringPiece(start, p - start));
- continue;
- }
-yy105:
- ++p;
- if ((yych = *p) == '\n') goto yy137;
- {
- last_token_ = start;
- return Error(DescribeLastError(), err);
- }
-yy107:
- ++p;
- {
- if (path) {
- p = start;
- break;
- } else {
- if (*start == '\n')
- break;
- eval->AddText(StringPiece(start, 1));
- continue;
- }
- }
-yy109:
- yych = *++p;
- if (yych <= '-') {
- if (yych <= 0x1F) {
- if (yych <= '\n') {
- if (yych <= '\t') goto yy112;
- goto yy124;
- } else {
- if (yych == '\r') goto yy114;
- goto yy112;
- }
- } else {
- if (yych <= '#') {
- if (yych <= ' ') goto yy115;
- goto yy112;
- } else {
- if (yych <= '$') goto yy117;
- if (yych <= ',') goto yy112;
- goto yy119;
- }
- }
- } else {
- if (yych <= 'Z') {
- if (yych <= '9') {
- if (yych <= '/') goto yy112;
- goto yy119;
- } else {
- if (yych <= ':') goto yy121;
- if (yych <= '@') goto yy112;
- goto yy119;
- }
- } else {
- if (yych <= '`') {
- if (yych == '_') goto yy119;
- goto yy112;
- } else {
- if (yych <= 'z') goto yy119;
- if (yych <= '{') goto yy123;
- goto yy112;
- }
- }
- }
-yy110:
- ++p;
- {
- last_token_ = start;
- return Error("unexpected EOF", err);
- }
-yy112:
- ++p;
-yy113:
- {
- last_token_ = start;
- return Error("bad $-escape (literal $ must be written as $$)", err);
- }
-yy114:
- yych = *++p;
- if (yych == '\n') goto yy134;
- goto yy113;
-yy115:
- ++p;
- {
- eval->AddText(StringPiece(" ", 1));
- continue;
- }
-yy117:
- ++p;
- {
- eval->AddText(StringPiece("$", 1));
- continue;
- }
-yy119:
- ++p;
- yych = *p;
- goto yy133;
-yy120:
- {
- eval->AddSpecial(StringPiece(start + 1, p - start - 1));
- continue;
- }
-yy121:
- ++p;
- {
- eval->AddText(StringPiece(":", 1));
- continue;
- }
-yy123:
- yych = *(q = ++p);
- if (yybm[0+yych] & 32) {
- goto yy127;
- }
- goto yy113;
-yy124:
- ++p;
- yych = *p;
- if (yybm[0+yych] & 16) {
- goto yy124;
- }
- {
- continue;
- }
-yy127:
- ++p;
- yych = *p;
- if (yybm[0+yych] & 32) {
- goto yy127;
- }
- if (yych == '}') goto yy130;
- p = q;
- goto yy113;
-yy130:
- ++p;
- {
- eval->AddSpecial(StringPiece(start + 2, p - start - 3));
- continue;
- }
-yy132:
- ++p;
- yych = *p;
-yy133:
- if (yybm[0+yych] & 64) {
- goto yy132;
- }
- goto yy120;
-yy134:
- ++p;
- yych = *p;
- if (yych == ' ') goto yy134;
- {
- continue;
- }
-yy137:
- ++p;
- {
- if (path)
- p = start;
- break;
- }
-yy139:
- ++p;
- yych = *p;
-yy140:
- if (yybm[0+yych] & 128) {
- goto yy139;
- }
- goto yy104;
-}
-
- }
- last_token_ = start;
- ofs_ = p;
- if (path)
- EatWhitespace();
- // Non-path strings end in newlines, so there's no whitespace to eat.
- return true;
-}
+/* Generated by re2c 0.13.5 */ +// Copyright 2011 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include "lexer.h" + +#include <stdio.h> + +#include "eval_env.h" +#include "util.h" + +bool Lexer::Error(const string& message, string* err) { + // Compute line/column. + int line = 1; + const char* context = input_.str_; + for (const char* p = input_.str_; p < last_token_; ++p) { + if (*p == '\n') { + ++line; + context = p + 1; + } + } + int col = last_token_ ? (int)(last_token_ - context) : 0; + + char buf[1024]; + snprintf(buf, sizeof(buf), "%s:%d: ", filename_.AsString().c_str(), line); + *err = buf; + *err += message + "\n"; + + // Add some context to the message. + const int kTruncateColumn = 72; + if (col > 0 && col < kTruncateColumn) { + int len; + bool truncated = true; + for (len = 0; len < kTruncateColumn; ++len) { + if (context[len] == 0 || context[len] == '\n') { + truncated = false; + break; + } + } + *err += string(context, len); + if (truncated) + *err += "..."; + *err += "\n"; + *err += string(col, ' '); + *err += "^ near here"; + } + + return false; +} + +Lexer::Lexer(const char* input) { + Start("input", input); +} + +void Lexer::Start(StringPiece filename, StringPiece input) { + filename_ = filename; + input_ = input; + ofs_ = input_.str_; + last_token_ = NULL; +} + +const char* Lexer::TokenName(Token t) { + switch (t) { + case ERROR: return "lexing error"; + case BUILD: return "'build'"; + case COLON: return "':'"; + case DEFAULT: return "'default'"; + case EQUALS: return "'='"; + case IDENT: return "identifier"; + case INCLUDE: return "'include'"; + case INDENT: return "indent"; + case NEWLINE: return "newline"; + case PIPE2: return "'||'"; + case PIPE: return "'|'"; + case POOL: return "'pool'"; + case RULE: return "'rule'"; + case SUBNINJA: return "'subninja'"; + case TEOF: return "eof"; + } + return NULL; // not reached +} + +const char* Lexer::TokenErrorHint(Token expected) { + switch (expected) { + case COLON: + return " ($ also escapes ':')"; + default: + return ""; + } +} + +string Lexer::DescribeLastError() { + if (last_token_) { + switch (last_token_[0]) { + case '\t': + return "tabs are not allowed, use spaces"; + } + } + return "lexing error"; +} + +void Lexer::UnreadToken() { + ofs_ = last_token_; +} + +Lexer::Token Lexer::ReadToken() { + const char* p = ofs_; + const char* q; + const char* start; + Lexer::Token token; + for (;;) { + start = p; + +{ + unsigned char yych; + unsigned int yyaccept = 0; + static const unsigned char yybm[] = { + 0, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 0, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 192, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 96, 96, 64, + 96, 96, 96, 96, 96, 96, 96, 96, + 96, 96, 64, 64, 64, 64, 64, 64, + 64, 96, 96, 96, 96, 96, 96, 96, + 96, 96, 96, 96, 96, 96, 96, 96, + 96, 96, 96, 96, 96, 96, 96, 96, + 96, 96, 96, 64, 64, 64, 64, 96, + 64, 96, 96, 96, 96, 96, 96, 96, + 96, 96, 96, 96, 96, 96, 96, 96, + 96, 96, 96, 96, 96, 96, 96, 96, + 96, 96, 96, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, + }; + + yych = *p; + if (yych <= 'Z') { + if (yych <= '#') { + if (yych <= '\f') { + if (yych <= 0x00) goto yy23; + if (yych == '\n') goto yy7; + goto yy25; + } else { + if (yych <= 0x1F) { + if (yych <= '\r') goto yy6; + goto yy25; + } else { + if (yych <= ' ') goto yy2; + if (yych <= '"') goto yy25; + goto yy4; + } + } + } else { + if (yych <= '9') { + if (yych <= ',') goto yy25; + if (yych == '/') goto yy25; + goto yy22; + } else { + if (yych <= '<') { + if (yych <= ':') goto yy16; + goto yy25; + } else { + if (yych <= '=') goto yy14; + if (yych <= '@') goto yy25; + goto yy22; + } + } + } + } else { + if (yych <= 'i') { + if (yych <= 'a') { + if (yych == '_') goto yy22; + if (yych <= '`') goto yy25; + goto yy22; + } else { + if (yych <= 'c') { + if (yych <= 'b') goto yy9; + goto yy22; + } else { + if (yych <= 'd') goto yy13; + if (yych <= 'h') goto yy22; + goto yy20; + } + } + } else { + if (yych <= 'r') { + if (yych == 'p') goto yy11; + if (yych <= 'q') goto yy22; + goto yy12; + } else { + if (yych <= 'z') { + if (yych <= 's') goto yy21; + goto yy22; + } else { + if (yych == '|') goto yy18; + goto yy25; + } + } + } + } +yy2: + yyaccept = 0; + yych = *(q = ++p); + goto yy73; +yy3: + { token = INDENT; break; } +yy4: + yyaccept = 1; + yych = *(q = ++p); + if (yych >= 0x01) goto yy68; +yy5: + { token = ERROR; break; } +yy6: + yych = *++p; + if (yych == '\n') goto yy65; + goto yy5; +yy7: + ++p; +yy8: + { token = NEWLINE; break; } +yy9: + ++p; + if ((yych = *p) == 'u') goto yy60; + goto yy27; +yy10: + { token = IDENT; break; } +yy11: + yych = *++p; + if (yych == 'o') goto yy56; + goto yy27; +yy12: + yych = *++p; + if (yych == 'u') goto yy52; + goto yy27; +yy13: + yych = *++p; + if (yych == 'e') goto yy45; + goto yy27; +yy14: + ++p; + { token = EQUALS; break; } +yy16: + ++p; + { token = COLON; break; } +yy18: + ++p; + if ((yych = *p) == '|') goto yy43; + { token = PIPE; break; } +yy20: + yych = *++p; + if (yych == 'n') goto yy36; + goto yy27; +yy21: + yych = *++p; + if (yych == 'u') goto yy28; + goto yy27; +yy22: + yych = *++p; + goto yy27; +yy23: + ++p; + { token = TEOF; break; } +yy25: + yych = *++p; + goto yy5; +yy26: + ++p; + yych = *p; +yy27: + if (yybm[0+yych] & 32) { + goto yy26; + } + goto yy10; +yy28: + yych = *++p; + if (yych != 'b') goto yy27; + yych = *++p; + if (yych != 'n') goto yy27; + yych = *++p; + if (yych != 'i') goto yy27; + yych = *++p; + if (yych != 'n') goto yy27; + yych = *++p; + if (yych != 'j') goto yy27; + yych = *++p; + if (yych != 'a') goto yy27; + ++p; + if (yybm[0+(yych = *p)] & 32) { + goto yy26; + } + { token = SUBNINJA; break; } +yy36: + yych = *++p; + if (yych != 'c') goto yy27; + yych = *++p; + if (yych != 'l') goto yy27; + yych = *++p; + if (yych != 'u') goto yy27; + yych = *++p; + if (yych != 'd') goto yy27; + yych = *++p; + if (yych != 'e') goto yy27; + ++p; + if (yybm[0+(yych = *p)] & 32) { + goto yy26; + } + { token = INCLUDE; break; } +yy43: + ++p; + { token = PIPE2; break; } +yy45: + yych = *++p; + if (yych != 'f') goto yy27; + yych = *++p; + if (yych != 'a') goto yy27; + yych = *++p; + if (yych != 'u') goto yy27; + yych = *++p; + if (yych != 'l') goto yy27; + yych = *++p; + if (yych != 't') goto yy27; + ++p; + if (yybm[0+(yych = *p)] & 32) { + goto yy26; + } + { token = DEFAULT; break; } +yy52: + yych = *++p; + if (yych != 'l') goto yy27; + yych = *++p; + if (yych != 'e') goto yy27; + ++p; + if (yybm[0+(yych = *p)] & 32) { + goto yy26; + } + { token = RULE; break; } +yy56: + yych = *++p; + if (yych != 'o') goto yy27; + yych = *++p; + if (yych != 'l') goto yy27; + ++p; + if (yybm[0+(yych = *p)] & 32) { + goto yy26; + } + { token = POOL; break; } +yy60: + yych = *++p; + if (yych != 'i') goto yy27; + yych = *++p; + if (yych != 'l') goto yy27; + yych = *++p; + if (yych != 'd') goto yy27; + ++p; + if (yybm[0+(yych = *p)] & 32) { + goto yy26; + } + { token = BUILD; break; } +yy65: + ++p; + { token = NEWLINE; break; } +yy67: + ++p; + yych = *p; +yy68: + if (yybm[0+yych] & 64) { + goto yy67; + } + if (yych >= 0x01) goto yy70; +yy69: + p = q; + if (yyaccept <= 0) { + goto yy3; + } else { + goto yy5; + } +yy70: + ++p; + { continue; } +yy72: + yyaccept = 0; + q = ++p; + yych = *p; +yy73: + if (yybm[0+yych] & 128) { + goto yy72; + } + if (yych <= '\f') { + if (yych != '\n') goto yy3; + } else { + if (yych <= '\r') goto yy75; + if (yych == '#') goto yy67; + goto yy3; + } + yych = *++p; + goto yy8; +yy75: + ++p; + if ((yych = *p) == '\n') goto yy65; + goto yy69; +} + + } + + last_token_ = start; + ofs_ = p; + if (token != NEWLINE && token != TEOF) + EatWhitespace(); + return token; +} + +bool Lexer::PeekToken(Token token) { + Token t = ReadToken(); + if (t == token) + return true; + UnreadToken(); + return false; +} + +void Lexer::EatWhitespace() { + const char* p = ofs_; + const char* q; + for (;;) { + ofs_ = p; + +{ + unsigned char yych; + static const unsigned char yybm[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 128, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + }; + yych = *p; + if (yych <= ' ') { + if (yych <= 0x00) goto yy82; + if (yych <= 0x1F) goto yy84; + } else { + if (yych == '$') goto yy80; + goto yy84; + } + ++p; + yych = *p; + goto yy92; +yy79: + { continue; } +yy80: + yych = *(q = ++p); + if (yych == '\n') goto yy85; + if (yych == '\r') goto yy87; +yy81: + { break; } +yy82: + ++p; + { break; } +yy84: + yych = *++p; + goto yy81; +yy85: + ++p; + { continue; } +yy87: + yych = *++p; + if (yych == '\n') goto yy89; + p = q; + goto yy81; +yy89: + ++p; + { continue; } +yy91: + ++p; + yych = *p; +yy92: + if (yybm[0+yych] & 128) { + goto yy91; + } + goto yy79; +} + + } +} + +bool Lexer::ReadIdent(string* out) { + const char* p = ofs_; + for (;;) { + const char* start = p; + +{ + unsigned char yych; + static const unsigned char yybm[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 128, 128, 0, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 0, 0, 0, 0, 0, 0, + 0, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 0, 0, 0, 0, 128, + 0, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + }; + yych = *p; + if (yych <= '@') { + if (yych <= '.') { + if (yych <= ',') goto yy97; + } else { + if (yych <= '/') goto yy97; + if (yych >= ':') goto yy97; + } + } else { + if (yych <= '_') { + if (yych <= 'Z') goto yy95; + if (yych <= '^') goto yy97; + } else { + if (yych <= '`') goto yy97; + if (yych >= '{') goto yy97; + } + } +yy95: + ++p; + yych = *p; + goto yy100; +yy96: + { + out->assign(start, p - start); + break; + } +yy97: + ++p; + { return false; } +yy99: + ++p; + yych = *p; +yy100: + if (yybm[0+yych] & 128) { + goto yy99; + } + goto yy96; +} + + } + ofs_ = p; + EatWhitespace(); + return true; +} + +bool Lexer::ReadEvalString(EvalString* eval, bool path, string* err) { + const char* p = ofs_; + const char* q; + const char* start; + for (;;) { + start = p; + +{ + unsigned char yych; + static const unsigned char yybm[] = { + 0, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 0, 128, 128, 0, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 16, 128, 128, 128, 0, 128, 128, 128, + 128, 128, 128, 128, 128, 224, 160, 128, + 224, 224, 224, 224, 224, 224, 224, 224, + 224, 224, 0, 128, 128, 128, 128, 128, + 128, 224, 224, 224, 224, 224, 224, 224, + 224, 224, 224, 224, 224, 224, 224, 224, + 224, 224, 224, 224, 224, 224, 224, 224, + 224, 224, 224, 128, 128, 128, 128, 224, + 128, 224, 224, 224, 224, 224, 224, 224, + 224, 224, 224, 224, 224, 224, 224, 224, + 224, 224, 224, 224, 224, 224, 224, 224, + 224, 224, 224, 128, 0, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, + }; + yych = *p; + if (yych <= ' ') { + if (yych <= '\n') { + if (yych <= 0x00) goto yy110; + if (yych >= '\n') goto yy107; + } else { + if (yych == '\r') goto yy105; + if (yych >= ' ') goto yy107; + } + } else { + if (yych <= '9') { + if (yych == '$') goto yy109; + } else { + if (yych <= ':') goto yy107; + if (yych == '|') goto yy107; + } + } + ++p; + yych = *p; + goto yy140; +yy104: + { + eval->AddText(StringPiece(start, p - start)); + continue; + } +yy105: + ++p; + if ((yych = *p) == '\n') goto yy137; + { + last_token_ = start; + return Error(DescribeLastError(), err); + } +yy107: + ++p; + { + if (path) { + p = start; + break; + } else { + if (*start == '\n') + break; + eval->AddText(StringPiece(start, 1)); + continue; + } + } +yy109: + yych = *++p; + if (yych <= '-') { + if (yych <= 0x1F) { + if (yych <= '\n') { + if (yych <= '\t') goto yy112; + goto yy124; + } else { + if (yych == '\r') goto yy114; + goto yy112; + } + } else { + if (yych <= '#') { + if (yych <= ' ') goto yy115; + goto yy112; + } else { + if (yych <= '$') goto yy117; + if (yych <= ',') goto yy112; + goto yy119; + } + } + } else { + if (yych <= 'Z') { + if (yych <= '9') { + if (yych <= '/') goto yy112; + goto yy119; + } else { + if (yych <= ':') goto yy121; + if (yych <= '@') goto yy112; + goto yy119; + } + } else { + if (yych <= '`') { + if (yych == '_') goto yy119; + goto yy112; + } else { + if (yych <= 'z') goto yy119; + if (yych <= '{') goto yy123; + goto yy112; + } + } + } +yy110: + ++p; + { + last_token_ = start; + return Error("unexpected EOF", err); + } +yy112: + ++p; +yy113: + { + last_token_ = start; + return Error("bad $-escape (literal $ must be written as $$)", err); + } +yy114: + yych = *++p; + if (yych == '\n') goto yy134; + goto yy113; +yy115: + ++p; + { + eval->AddText(StringPiece(" ", 1)); + continue; + } +yy117: + ++p; + { + eval->AddText(StringPiece("$", 1)); + continue; + } +yy119: + ++p; + yych = *p; + goto yy133; +yy120: + { + eval->AddSpecial(StringPiece(start + 1, p - start - 1)); + continue; + } +yy121: + ++p; + { + eval->AddText(StringPiece(":", 1)); + continue; + } +yy123: + yych = *(q = ++p); + if (yybm[0+yych] & 32) { + goto yy127; + } + goto yy113; +yy124: + ++p; + yych = *p; + if (yybm[0+yych] & 16) { + goto yy124; + } + { + continue; + } +yy127: + ++p; + yych = *p; + if (yybm[0+yych] & 32) { + goto yy127; + } + if (yych == '}') goto yy130; + p = q; + goto yy113; +yy130: + ++p; + { + eval->AddSpecial(StringPiece(start + 2, p - start - 3)); + continue; + } +yy132: + ++p; + yych = *p; +yy133: + if (yybm[0+yych] & 64) { + goto yy132; + } + goto yy120; +yy134: + ++p; + yych = *p; + if (yych == ' ') goto yy134; + { + continue; + } +yy137: + ++p; + { + if (path) + p = start; + break; + } +yy139: + ++p; + yych = *p; +yy140: + if (yybm[0+yych] & 128) { + goto yy139; + } + goto yy104; +} + + } + last_token_ = start; + ofs_ = p; + if (path) + EatWhitespace(); + // Non-path strings end in newlines, so there's no whitespace to eat. + return true; +} |