rgpre
A tool for rg --pre.
Read file to console, automatically recognize file encoding, include ansi, utf16le, utf16be, utf8. Currently output ansi as gbk for chinese text search.
Usage
rg --pre rgpre 中文
中文说明
rg有个问题是只能自动根据bom识别utf-8,utf16等，除此之外如gbk编码的文件，只能用rg -Egbk来搜索，这多少有点不方便。本工具根据rg提供的--pre参数说明编写而成，自动识别文件编码并把内容输出到console供rg搜索，支持编码有ansi，utf16le/be，utf8，目前ansi直接认为是gbk编码以方便中文搜索。参考了grepwin和ripgrep的源码。
输出到console会对rg速度有些影响，建议只在搜索中文时使用--pre参数。
emacs可以这样设置，只在搜索中文时开启--pre rgpre:
(defun chinese-char-p (char)
(if (string-match "\\cC\\{1\\}" (string char))
t
nil)
)
(require 'cl-lib)
(defun chinese-word-chinese-string-p (string)
"Return t if STRING is a Chinese string."
(cl-find-if 'chinese-char-p (string-to-list string))
)
;; helm
(defadvice helm-grep-ag-prepare-cmd-line (around my-helm-grep-ag-prepare-cmd-line activate)
(if (chinese-word-chinese-string-p (ad-get-arg 0))
(let ((helm-grep-ag-command (concat helm-grep-ag-command " --pre rgpre")))
ad-do-it)
ad-do-it)
)
;; rg.el
(defadvice rg-build-command (around my-rg-build-command activate)
(if (chinese-word-chinese-string-p (ad-get-arg 0))
(let ((rg-command-line-flags (list "--pre rgpre")))
ad-do-it
)
ad-do-it)
)
调试
console窗口rgpre file就可以看到输出。
感谢
ripgrep, grepwin，rust，encoding_rs，they are all awesome!
