diff options
Diffstat (limited to 'src/depfile_parser.cc')
| -rw-r--r-- | src/depfile_parser.cc | 476 |
1 files changed, 238 insertions, 238 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; +} |