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1bb39eba87
TengoModifyMessage allows you to specify the location of a tengo (https://github.com/d5/tengo/) script. This script will receive every incoming message and can be used to modify the Username and the Text of that message. The script will have the following global variables: to modify: msgUsername and msgText to read: msgChannel and msgAccount The script is reloaded on every message, so you can modify the script on the fly. Example script can be found in https://github.com/42wim/matterbridge/tree/master/gateway/bench.tengo and https://github.com/42wim/matterbridge/tree/master/contrib/example.tengo The example below will check if the text contains blah and if so, it'll replace the text and the username of that message. text := import("text") if text.re_match("blah",msgText) { msgText="replaced by this" msgUsername="fakeuser" } More information about tengo on: https://github.com/d5/tengo/blob/master/docs/tutorial.md and https://github.com/d5/tengo/blob/master/docs/stdlib.md
111 lines
2.3 KiB
Go
111 lines
2.3 KiB
Go
package source
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// File represents a source file.
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type File struct {
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// File set for the file
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set *FileSet
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// File name as provided to AddFile
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Name string
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// Pos value range for this file is [base...base+size]
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Base int
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// File size as provided to AddFile
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Size int
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// Lines contains the offset of the first character for each line (the first entry is always 0)
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Lines []int
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}
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// Set returns FileSet.
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func (f *File) Set() *FileSet {
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return f.set
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}
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// LineCount returns the current number of lines.
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func (f *File) LineCount() int {
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return len(f.Lines)
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}
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// AddLine adds a new line.
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func (f *File) AddLine(offset int) {
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if i := len(f.Lines); (i == 0 || f.Lines[i-1] < offset) && offset < f.Size {
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f.Lines = append(f.Lines, offset)
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}
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}
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// LineStart returns the position of the first character in the line.
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func (f *File) LineStart(line int) Pos {
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if line < 1 {
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panic("illegal line number (line numbering starts at 1)")
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}
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if line > len(f.Lines) {
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panic("illegal line number")
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}
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return Pos(f.Base + f.Lines[line-1])
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}
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// FileSetPos returns the position in the file set.
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func (f *File) FileSetPos(offset int) Pos {
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if offset > f.Size {
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panic("illegal file offset")
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}
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return Pos(f.Base + offset)
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}
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// Offset translates the file set position into the file offset.
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func (f *File) Offset(p Pos) int {
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if int(p) < f.Base || int(p) > f.Base+f.Size {
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panic("illegal Pos value")
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}
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return int(p) - f.Base
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}
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// Position translates the file set position into the file position.
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func (f *File) Position(p Pos) (pos FilePos) {
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if p != NoPos {
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if int(p) < f.Base || int(p) > f.Base+f.Size {
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panic("illegal Pos value")
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}
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pos = f.position(p)
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}
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return
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}
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func (f *File) position(p Pos) (pos FilePos) {
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offset := int(p) - f.Base
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pos.Offset = offset
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pos.Filename, pos.Line, pos.Column = f.unpack(offset)
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return
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}
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func (f *File) unpack(offset int) (filename string, line, column int) {
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filename = f.Name
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if i := searchInts(f.Lines, offset); i >= 0 {
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line, column = i+1, offset-f.Lines[i]+1
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}
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return
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}
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func searchInts(a []int, x int) int {
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// This function body is a manually inlined version of:
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// return sort.Search(len(a), func(i int) bool { return a[i] > x }) - 1
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i, j := 0, len(a)
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for i < j {
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h := i + (j-i)/2 // avoid overflow when computing h
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// i ≤ h < j
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if a[h] <= x {
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i = h + 1
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} else {
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j = h
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}
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}
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return i - 1
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}
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