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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| // -*- mode:c++;indent-tabs-mode:nil;c-basic-offset:4;coding:utf-8 -*- | ||
| // vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi | ||
| // | ||
| // Copyright 2024 Mozilla Foundation | ||
| // | ||
| // 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 "xterm.h" | ||
|
|
||
| #include <stdio.h> | ||
| #include <stdlib.h> | ||
|
|
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| int main(int argc, char *argv[]) { | ||
|
|
||
| if (argc < 2) { | ||
| fprintf(stderr, "%s: missing operand\n", argv[0]); | ||
| exit(1); | ||
| } | ||
|
|
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| // process RRGGBB hex arguments | ||
| for (int i = 1; i < argc; ++i) { | ||
| int rgb = strtol(argv[i], 0, 16); | ||
| int xterm = rgb2xterm256(rgb); | ||
| printf("\n"); | ||
| printf("xterm code %d\n", xterm); | ||
| printf("html5 code #%06x\n", rgb); | ||
| printf("foreground \033[38;5;%dm\\033[38;5;%dm\033[0m\n", xterm, xterm); | ||
| printf("background \033[48;5;%dm\\033[48;5;%dm\033[0m\n", xterm, xterm); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| // -*- mode:c++;indent-tabs-mode:nil;c-basic-offset:4;coding:utf-8 -*- | ||
| // vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi | ||
| // | ||
| // Copyright 2024 Mozilla Foundation | ||
| // | ||
| // 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. | ||
|
|
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| #include "highlight.h" | ||
| #include <fcntl.h> | ||
| #include <stdio.h> | ||
| #include <stdlib.h> | ||
| #include <string> | ||
| #include <string_view> | ||
| #include <unistd.h> | ||
|
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| // syntax highlighter demo | ||
|
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| int main(int argc, char *argv[]) { | ||
|
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| // process flags | ||
| int opt; | ||
| int infd = 0; | ||
| int outfd = 1; | ||
| const char *lang = nullptr; | ||
| const char *inpath = nullptr; | ||
| while ((opt = getopt(argc, argv, "hl:o:")) != -1) { | ||
| switch (opt) { | ||
| case 'h': | ||
| printf("usage: %s [-l LANG] [-o OUTFILE] [INFILE]\n", argv[0]); | ||
| exit(0); | ||
| case 'l': | ||
| lang = optarg; | ||
| break; | ||
| case 'o': | ||
| if ((outfd = creat(optarg, 0644)) == -1) { | ||
| perror(optarg); | ||
| exit(1); | ||
| } | ||
| break; | ||
| default: | ||
| exit(1); | ||
| } | ||
| } | ||
| if (optind < argc) { | ||
| inpath = argv[optind]; | ||
| if ((infd = open(inpath, O_RDONLY)) == -1) { | ||
| perror(inpath); | ||
| exit(1); | ||
| } | ||
| } | ||
|
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| // create syntax highlighter | ||
| Highlight *h; | ||
| const char *ext; | ||
| if (lang) { | ||
| h = Highlight::create(lang); | ||
| } else if (inpath && (ext = strrchr(inpath, '.'))) { | ||
| h = Highlight::create(ext + 1); | ||
| } else { | ||
| h = Highlight::create("markdown"); | ||
| } | ||
|
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| // process input | ||
| std::string res; | ||
| for (;;) { | ||
|
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| // read input chunk | ||
| char buf[256]; | ||
| ssize_t rc = read(infd, buf, sizeof(buf)); | ||
| if (rc == -1) { | ||
| perror("read"); | ||
| exit(1); | ||
| } | ||
| size_t got = rc; | ||
| if (!got) | ||
| break; | ||
|
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| // highlight chunk | ||
| res.clear(); | ||
| h->feed(&res, std::string_view(buf, got)); | ||
|
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| // write highlighted output chunk | ||
| write(outfd, res.data(), res.size()); | ||
| } | ||
|
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| // flush highlighter | ||
| res.clear(); | ||
| h->flush(&res); | ||
| write(outfd, res.data(), res.size()); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| // -*- mode:c++;indent-tabs-mode:nil;c-basic-offset:4;coding:utf-8 -*- | ||
| // vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi | ||
| // | ||
| // Copyright 2024 Mozilla Foundation | ||
| // | ||
| // 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. | ||
|
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| #include "highlight.h" | ||
|
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| Highlight *Highlight::create(const std::string_view &lang) { | ||
| if (lang == "markdown" || lang == "md") { | ||
| return new HighlightMarkdown; | ||
| } else if (lang == "c") { | ||
| return new HighlightC(is_keyword_c); | ||
| } else if (lang == "c++" || lang == "cxx" || lang == "cpp") { | ||
| return new HighlightC(is_keyword_cxx); | ||
| } else if (lang == "js" || lang == "javascript") { | ||
| return new HighlightC(is_keyword_js); | ||
| } else if (lang == "java") { | ||
| return new HighlightC(is_keyword_java); | ||
| } else if (lang == "py" || lang == "python") { | ||
| return new HighlightPython(); | ||
| } else { | ||
| return new HighlightPlain; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| // -*- mode:c++;indent-tabs-mode:nil;c-basic-offset:4;coding:utf-8 -*- | ||
| // vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi | ||
| // | ||
| // Copyright 2024 Mozilla Foundation | ||
| // | ||
| // 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. | ||
|
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| #pragma once | ||
| #include <string> | ||
| #include <string_view> | ||
|
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| #define RESET "\033[0m" | ||
| #define BOLDE "\033[1m" | ||
| #define KEYWORD "\033[1;34m" // bold blue | ||
| #define STRING "\033[0;32m" // green | ||
| #define COMMENT "\033[0;31m" // red | ||
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| typedef const char *is_keyword_f(const char *, size_t); | ||
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| extern "C" { | ||
| is_keyword_f is_keyword_c; | ||
| is_keyword_f is_keyword_cxx; | ||
| is_keyword_f is_keyword_js; | ||
| is_keyword_f is_keyword_java; | ||
| is_keyword_f is_keyword_python; | ||
| } | ||
|
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| class Highlight { | ||
| public: | ||
| static Highlight *create(const std::string_view &lang); | ||
| virtual ~Highlight() = default; | ||
| virtual void feed(std::string *result, std::string_view input) = 0; | ||
| virtual void flush(std::string *result) = 0; | ||
| }; | ||
|
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| class HighlightPlain : public Highlight { | ||
| public: | ||
| HighlightPlain(); | ||
| ~HighlightPlain() override; | ||
| void feed(std::string *result, std::string_view input) override; | ||
| void flush(std::string *result) override; | ||
| }; | ||
|
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| class HighlightC : public Highlight { | ||
| public: | ||
| explicit HighlightC(is_keyword_f is_keyword = is_keyword_c); | ||
| ~HighlightC() override; | ||
| void feed(std::string *result, std::string_view input) override; | ||
| void flush(std::string *result) override; | ||
|
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| private: | ||
| int t_ = 0; | ||
| std::string word_; | ||
| is_keyword_f *is_keyword_; | ||
| }; | ||
|
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| class HighlightPython : public Highlight { | ||
| public: | ||
| HighlightPython(); | ||
| ~HighlightPython() override; | ||
| void feed(std::string *result, std::string_view input) override; | ||
| void flush(std::string *result) override; | ||
|
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| private: | ||
| int t_ = 0; | ||
| std::string word_; | ||
| }; | ||
|
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| class HighlightMarkdown : public Highlight { | ||
| public: | ||
| HighlightMarkdown(); | ||
| ~HighlightMarkdown() override; | ||
| void feed(std::string *result, std::string_view input) override; | ||
| void flush(std::string *result) override; | ||
|
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||
| private: | ||
| int t_ = 0; | ||
| std::string lang_; | ||
| Highlight *highlighter_ = nullptr; | ||
| }; |
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