subfilter

命令行工具，用于处理和过滤字幕文件中的内容。

我使用它从字幕文件中获取预处理后的清洁输出。这个工具类似于 grep 或 rip-grep 等，但了解字幕文件格式。在这个工具的上下文中，“行”等同于完整的字幕条目（可能包含多个换行符）。您还可以请求打印与匹配行有持续时间差异的上下文行。

用法

    subfilter [FLAGS] [OPTIONS] <file-path> [pattern]

FLAGS:
    -h, --help         Prints help information
        --hide-time    Whether timecode should be shown for the first line
        --no-color     Disable color output for matching part
    -V, --version      Prints version information
    -v, --verbose      Verbose output

OPTIONS:
    -A, --after-context <after-context>                  Number of lines to show after each match [default: 0]
    -C, --context <around-context>
            Number of lines to show before and after each match. This overrides both the -B/--before-context and
            -A/--after-context flags
    -B, --before-context <before-context>                Number of lines to show after each match [default: 0]
        --post-replace-pattern <post-replace-pattern>
            Pattern to replace after pattern matching (see https://docs.rs/regex/1.3.7/regex/)

        --post-replace-with <post-replace-with>
            Replacement string after pattern matching (see https://docs.rs/regex/1.3.7/regex/)

        --pre-replace-pattern <pre-replace-pattern>
            Pattern to replace before pattern matching (see https://docs.rs/regex/1.3.7/regex/)

        --pre-replace-with <pre-replace-with>
            Replacement string before pattern matching (see https://docs.rs/regex/1.3.7/regex/)

    -i, --sep-interval <separation-interval-ms>
            Separate blocks if next timecode is later by an offset of this value in milliseconds [default: 5000]

        --time-after <time-after-context>
            Duration threshold in milliseconds to decide whether we show a line after a match. This overrides
            -C/--context -B/--before-context and -A/--after-context flags
        --time-around <time-around-context>
            Duration threshold in milliseconds to decide whether we show a line around a match. This overrides --time-
            after, --time-before, -C/--context -B/--before-context and -A/--after-context flags
        --time-before <time-before-context>
            Duration threshold in milliseconds to decide whether we show a line before a match. This overrides
            -C/--context -B/--before-context and -A/--after-context flags

ARGS:
    <file-path>    Input file
    <pattern>      Pattern to find (see https://docs.rs/regex/1.3.7/regex/)

演示

基本用法

带有一些正则表达式预处理步骤

示例

打印所有包含 "hello" 的行

subfilter subs.srt hello

打印所有包含 "hello" 或 "hi" 的行

subfilter subs.ass "(hello|hi")"

打印包含 "hello" 的行，同时显示前一行和下一行作为上下文。

subfilter -A 10 -B 1 subs.ass hello

打印包含 "hello world" 的所有行，但在应用匹配和替换正则表达式之前先删除 HTML 标签。这样，<span>hello</span> world 也会被过滤模式匹配。

subfilter --pre-replace-pattern="<\s*[\.a-zA-Z]+[^>]*>(.*?)<\s*/\s*[\.a-zA-Z]+>" --pre-replace-with="\$1" subs.ass "hello world"

打印包含 "hello world" 的所有行，但将 "hello" 替换为 "hi"。

subfilter --post-replace-pattern="hello" --post-replace-with="hi" subs.srt "hello world"

安装

• 安装 Rust 工具链
• 运行以下命令下载和编译

  $ cargo install subfilter