/* eslint-disable func-names */
/* eslint-disable no-restricted-syntax */
/* *************************************************************************************
* copyright: Copyright (c) 2021 Lowell D. Thomas, all rights reserved
* license: BSD-2-Clause (https://opensource.org/licenses/BSD-2-Clause)
* ********************************************************************************* */This module defines the AST translation callback functions functions. This is where the real work is done
manipulating the data gleaned from the INI file format.
module.exports = function astCallbacks() {
const { apgLib } = require('apg-js');
const id = apgLib.ids;
let currentSection;
let currentKey;Find a specific named key in a section object.
const findKey = function (keyname, section) {
const lower = keyname.toLowerCase();
for (const name in section) {
if (name.toLowerCase() === lower) {
return section[keyname];
}
}
return undefined;
};Find a specific named section in a list of sections.
const findSection = function (sectionname, sections) {
const lower = sectionname.toLowerCase();
for (const name in sections) {
if (name.toLowerCase() === lower) {
return sections[sectionname];
}
}
return undefined;
};Initialize the collection data object.
function astIniFile(state, chars, phraseIndex, phraseLength, data) {
const ret = id.SEM_OK;
if (state === id.SEM_PRE) {
currentSection = {};
data[0] = currentSection;
currentKey = undefined;
}
return ret;
}Collect key name and as set it the current key object.
function astKeyName(state, chars, phraseIndex, phraseLength) {
const ret = id.SEM_OK;
if (state === id.SEM_PRE) {
const name = apgLib.utils.charsToString(chars, phraseIndex, phraseLength);
currentKey = findKey(name, currentSection);
if (currentKey === undefined) {
currentKey = [];
currentSection[name] = currentKey;
}
}
return ret;
}Collect section name and as set it the current section object.
function astSectionName(state, chars, phraseIndex, phraseLength, data) {
const ret = id.SEM_OK;
if (state === id.SEM_PRE) {
const name = apgLib.utils.charsToString(chars, phraseIndex, phraseLength);
currentSection = findSection(name, data);
if (currentSection === undefined) {
currentSection = {};
data[name] = currentSection;
}
}
return ret;
}Push a value into the current key object.
function astValue(state, chars, phraseIndex, phraseLength) {
const ret = id.SEM_OK;
if (state === id.SEM_PRE) {
const value = apgLib.utils.charsToString(chars, phraseIndex, phraseLength);
currentKey.push(value);
}
return ret;
}Define all of the callback functions that will be used.
this.callbacks = [];
this.callbacks.alpha = false;
this.callbacks.alphadigit = false;
this.callbacks.any = false;
this.callbacks.badblankline = false;
this.callbacks.badsectionline = false;
this.callbacks.badvalueline = false;
this.callbacks.blankline = false;
this.callbacks.comment = false;
this.callbacks.digit = false;
this.callbacks.dquotedstring = false;
this.callbacks.goodblankline = false;
this.callbacks.goodsectionline = false;
this.callbacks.goodvalueline = false;
this.callbacks.inifile = astIniFile;
this.callbacks.keyname = astKeyName;
this.callbacks.lineend = false;
this.callbacks.section = false;
this.callbacks.sectionline = false;
this.callbacks.sectionname = astSectionName;
this.callbacks.squotedstring = false;
this.callbacks.value = astValue;
this.callbacks.valuearray = false;
this.callbacks.valueline = false;
this.callbacks.wsp = false;
};