92 lines
3.2 KiB
C++
92 lines
3.2 KiB
C++
#ifndef __COMFORTABLE_SWIPE__gesture_swipe_gesture_regex__
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#define __COMFORTABLE_SWIPE__gesture_swipe_gesture_regex__
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/*
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Comfortable Swipe
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by Rico Tiongson
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "swipe_gesture.h"
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namespace comfortable_swipe::gesture {
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/**
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* Regex pattern for the libinput entry for start of swipe.
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* Extracts one match for the number of fingers used during the swipe.
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*
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* eg. event15 GESTURE_SWIPE_BEGIN +34.33s 3
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* ^
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* fingers
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*/
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const char *swipe_gesture::GESTURE_BEGIN_REGEX_PATTERN =
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"^" // start of string
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"[ -]event\\d+" // event
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"\\s+GESTURE_SWIPE_BEGIN" // gesture
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"\\s+\\S+" // timestamp
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"\\s+(\\d+)" // fingers
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"\\s*$" // end of string
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;
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/**
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* Regex pattern for the libinput entry for the end of swipe.
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* Extracts one match for the number of fingers used during the swipe.
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*
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* eg. event15 GESTURE_SWIPE_END +35.03s 3
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* ^
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* fingers
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*/
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const char *swipe_gesture::GESTURE_END_REGEX_PATTERN =
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"^" // start of string
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"[ -]event\\d+" // event
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"\\s+GESTURE_SWIPE_END" // gesture
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"\\s+\\S+" // timestamp
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"\\s+(\\d+)" // fingers
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"\\s*$" // end of string
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;
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// matches signed decimal numbers (eg. "6.02" "-1.1")
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#define CF_NUMBER_REGEX "-?\\d+(?:\\.\\d+)"
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// matches and extracts a space-prefixed signed fraction (eg. "-3.00/ 5.12")
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#define CF_NUMBER_DIVISION "\\s*(" CF_NUMBER_REGEX ")/\\s*(" CF_NUMBER_REGEX ")"
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/**
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* Regex pattern for the libinput entry for during a swipe.
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* Extracts number of fingers used and the speed (normal and accelerated) of the
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* swipe.
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*
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* eg. event15 GESTURE_SWIPE_UPDATE +34.70s 3 -0.12/ 4.99 (-0.33/13.50
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* unaccelerated) ^ ^ ^ ^ ^ fingers dx dy udx udy
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*/
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const char *swipe_gesture::GESTURE_UPDATE_REGEX_PATTERN =
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"^" // start of string
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"[ -]event\\d+" // event
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"\\s+GESTURE_SWIPE_UPDATE" // gesture
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"\\s+\\S+" // timestamp
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"\\s+(\\d+)" // fingers
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"\\s+" CF_NUMBER_DIVISION // speed (dx/dy)
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"\\s+\\(" CF_NUMBER_DIVISION
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"\\s+unaccelerated\\)" // unaccelerated speed (udx/udy)
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"\\s*$" // end of string
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;
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// delete macros
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#undef CF_NUMBER_DIVISION
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#undef CF_NUMBER_EXTRACT
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#undef CF_NUMBER_REGEX
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} // namespace comfortable_swipe::gesture
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#endif /* __COMFORTABLE_SWIPE__gesture_swipe_gesture_regex__ */
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