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trtokens

Summary

Print tokens in a parse tree

Description

The trtokens command reads standard in for a parsing result set and prints out the tokens for each result. For each tree in a set, the first and last tokens for the tree are computed and printed, with a blank line separator.

Usage

trtokens

Examples

Input:

Assume the Arithmetic.g4 parser has been built.

Command:

trparse -i "1 * 2 + 3" | trxgrep " //expression" | trtokens

Output:

Time to parse: 00:00:00.0778212
# tokens per sec = 128.49968903075256
[@4,4:4='2',<2>,1:4]

[@0,0:0='1',<2>,1:0]

[@8,8:8='3',<2>,1:8]

[@0,0:0='1',<2>,1:0]
[@1,1:1=' ',<15>,channel=1,1:1]
[@2,2:2='*',<7>,1:2]
[@3,3:3=' ',<15>,channel=1,1:3]
[@4,4:4='2',<2>,1:4]

[@0,0:0='1',<2>,1:0]
[@1,1:1=' ',<15>,channel=1,1:1]
[@2,2:2='*',<7>,1:2]
[@3,3:3=' ',<15>,channel=1,1:3]
[@4,4:4='2',<2>,1:4]
[@5,5:5=' ',<15>,channel=1,1:5]
[@6,6:6='+',<5>,1:6]
[@7,7:7=' ',<15>,channel=1,1:7]
[@8,8:8='3',<2>,1:8]

Current version

0.23.0 Major changes to trgen, trparse, trfoldlit, trquery. Removal of trinsert, trdelete, trmove, trdelabel, trstrip.

License

The MIT License

Copyright (c) 2024 Ken Domino

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.