Veronica K. B. Olsen
479 lines
14 KiB
Python
479 lines
14 KiB
Python
# -*- coding: utf-8 -*-
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"""novelWriter Project Index
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novelWriter – Project Index
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=============================
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Class holding the index of tags
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File History:
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Created: 2019-05-27 [0.1.4]
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"""
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import logging
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import json
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import nw
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from os import path
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from nw.constants import (
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nwFiles, nwKeyWords, nwItemType, nwItemClass, nwAlert
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)
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logger = logging.getLogger(__name__)
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class NWIndex():
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VALID_KEYS = [
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nwKeyWords.TAG_KEY,
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nwKeyWords.PLOT_KEY,
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nwKeyWords.POV_KEY,
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nwKeyWords.CHAR_KEY,
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nwKeyWords.WORLD_KEY,
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nwKeyWords.TIME_KEY,
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nwKeyWords.OBJECT_KEY,
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nwKeyWords.ENTITY_KEY,
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nwKeyWords.CUSTOM_KEY
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]
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TAG_CLASS = {
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nwKeyWords.CHAR_KEY : [nwItemClass.CHARACTER, 1],
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nwKeyWords.POV_KEY : [nwItemClass.CHARACTER, 2],
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nwKeyWords.PLOT_KEY : [nwItemClass.PLOT, 1],
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nwKeyWords.TIME_KEY : [nwItemClass.TIMELINE, 1],
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nwKeyWords.WORLD_KEY : [nwItemClass.WORLD, 1],
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nwKeyWords.OBJECT_KEY : [nwItemClass.OBJECT, 1],
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nwKeyWords.ENTITY_KEY : [nwItemClass.ENTITY, 1],
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nwKeyWords.CUSTOM_KEY : [nwItemClass.CUSTOM, 1],
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}
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def __init__(self, theProject, theParent):
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# Internal
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self.theProject = theProject
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self.theParent = theParent
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self.mainConf = self.theParent.mainConf
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self.indexBroken = False
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# Indices
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self.tagIndex = {}
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self.refIndex = {}
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self.novelIndex = {}
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self.noteIndex = {}
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# Lists
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self.novelList = []
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return
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##
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# Public Methods
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##
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def clearIndex(self):
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self.tagIndex = {}
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self.refIndex = {}
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self.novelIndex = {}
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self.noteIndex = {}
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return
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def deleteHandle(self, tHandle):
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delTags = []
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for tTag in self.tagIndex:
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if self.tagIndex[tTag][1] == tHandle:
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delTags.append(tTag)
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for tTag in delTags:
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self.tagIndex.pop(tTag, None)
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self.refIndex.pop(tHandle, None)
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self.novelIndex.pop(tHandle, None)
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self.noteIndex.pop(tHandle, None)
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return
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##
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# Load and Save Index to/from File
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##
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def loadIndex(self):
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"""Load index from last session from the project meta folder.
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"""
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theData = {}
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indexFile = path.join(self.theProject.projMeta, nwFiles.INDEX_FILE)
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if path.isfile(indexFile):
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logger.debug("Loading index file")
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try:
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with open(indexFile,mode="r",encoding="utf8") as inFile:
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theJson = inFile.read()
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theData = json.loads(theJson)
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except Exception as e:
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logger.error("Failed to load index file")
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logger.error(str(e))
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return False
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if "tagIndex" in theData.keys():
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self.tagIndex = theData["tagIndex"]
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if "refIndex" in theData.keys():
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self.refIndex = theData["refIndex"]
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if "novelIndex" in theData.keys():
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self.novelIndex = theData["novelIndex"]
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if "noteIndex" in theData.keys():
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self.noteIndex = theData["noteIndex"]
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self.checkIndex()
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return True
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return False
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def saveIndex(self):
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"""Save the current index as a json file in the project meta
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folder.
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"""
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indexFile = path.join(self.theProject.projMeta, nwFiles.INDEX_FILE)
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logger.debug("Saving index file")
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if self.mainConf.debugInfo:
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nIndent = 2
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else:
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nIndent = None
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try:
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with open(indexFile,mode="w+",encoding="utf8") as outFile:
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outFile.write(json.dumps({
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"tagIndex" : self.tagIndex,
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"refIndex" : self.refIndex,
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"novelIndex" : self.novelIndex,
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"noteIndex" : self.noteIndex,
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}, indent=nIndent))
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except Exception as e:
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logger.error("Failed to save index file")
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logger.error(str(e))
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return False
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return True
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def checkIndex(self):
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"""Check that the entries in the index are valid and contain the
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elements it should.
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"""
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self.indexBroken = False
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for tTag in self.tagIndex:
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if len(self.tagIndex[tTag]) != 3:
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self.indexBroken = True
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for tHandle in self.refIndex:
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for tEntry in self.refIndex[tHandle]:
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if len(tEntry) != 4:
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self.indexBroken = True
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for tHandle in self.novelIndex:
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for tEntry in self.novelIndex[tHandle]:
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if len(tEntry) != 4:
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self.indexBroken = True
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for tHandle in self.noteIndex:
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for tEntry in self.noteIndex[tHandle]:
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if len(tEntry) != 4:
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self.indexBroken = True
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if self.indexBroken:
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self.clearIndex()
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self.theParent.makeAlert(
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"The project index loaded from cache contains errors. Triggering Rebuild Index.",
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nwAlert.WARN
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)
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return
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##
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# Index Building
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##
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def scanText(self, tHandle, theText):
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"""Scan a piece of text associated with a handle. This will
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update the indices accordingly. This function takes the handle
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and text as separate inputs as we want to primarily scan the
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files before we save them, unless we're rebuilding the index.
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"""
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theItem = self.theProject.getItem(tHandle)
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if theItem is None: return False
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if theItem.itemType != nwItemType.FILE: return False
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if theItem.parHandle == self.theProject.trashRoot: return False
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itemClass = theItem.itemClass
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itemLayout = theItem.itemLayout
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logger.debug("Indexing item with handle %s" % tHandle)
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# Check file type, and reset its old index
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if itemClass == nwItemClass.NOVEL:
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self.novelIndex[tHandle] = []
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self.refIndex[tHandle] = []
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isNovel = True
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else:
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self.noteIndex[tHandle] = []
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self.refIndex[tHandle] = []
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isNovel = False
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# Also clear references to file in tag index
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clearTags = []
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for aTag in self.tagIndex:
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if self.tagIndex[aTag][1] == tHandle:
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clearTags.append(aTag)
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for aTag in clearTags:
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self.tagIndex.pop(aTag)
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nLine = 0
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nTitle = 0
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for aLine in theText.splitlines():
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aLine = aLine.strip()
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nLine += 1
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nChar = len(aLine)
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if nChar == 0: continue
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if aLine[0] == "#":
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isTitle = self.indexTitle(tHandle, isNovel, aLine, nLine, itemLayout)
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if isTitle:
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nTitle = nLine
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elif aLine[0] == "@":
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self.indexNoteRef(tHandle, aLine, nLine, nTitle)
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self.indexTag(tHandle, aLine, nLine, itemClass)
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return True
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def indexTitle(self, tHandle, isNovel, aLine, nLine, itemLayout):
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"""Save information about the title and its location in the
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file.
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"""
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if aLine.startswith("# "):
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hDepth = 1
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hText = aLine[2:].strip()
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elif aLine.startswith("## "):
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hDepth = 2
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hText = aLine[3:].strip()
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elif aLine.startswith("### "):
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hDepth = 3
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hText = aLine[4:].strip()
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elif aLine.startswith("#### "):
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hDepth = 4
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hText = aLine[5:].strip()
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else:
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return False
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if hText != "":
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if isNovel:
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if tHandle in self.novelIndex:
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self.novelIndex[tHandle].append([nLine, hDepth, hText, itemLayout.name])
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else:
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if tHandle in self.noteIndex:
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self.noteIndex[tHandle].append([nLine, hDepth, hText, itemLayout.name])
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return True
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def indexNoteRef(self, tHandle, aLine, nLine, nTitle):
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"""Validate and save the information about a reference to a tag
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in another file.
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"""
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isValid, theBits, thePos = self.scanThis(aLine)
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if not isValid or len(theBits) == 0:
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return False
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if theBits[0] != nwKeyWords.TAG_KEY:
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for aVal in theBits[1:]:
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self.refIndex[tHandle].append([nLine, theBits[0], aVal, nTitle])
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return True
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def indexTag(self, tHandle, aLine, nLine, itemClass):
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"""Validate and save the information from a tag.
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"""
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isValid, theBits, thePos = self.scanThis(aLine)
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if not isValid or len(theBits) != 2:
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return False
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if theBits[0] == nwKeyWords.TAG_KEY:
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self.tagIndex[theBits[1]] = [nLine, tHandle, itemClass.name]
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return True
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##
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# Check @ Lines
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##
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def scanThis(self, aLine):
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"""Scan a line starting with @ to check that it's valid and to
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split up its elements into an array and an array of positions.
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The latter is needed for the syntax highlighter.
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"""
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theBits = []
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thePos = []
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aLine = aLine.strip()
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nChar = len(aLine)
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if nChar < 2:
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return False, theBits, thePos
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if aLine[0] != "@":
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return False, theBits, thePos
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cPos = 0
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cKey, cSep, cVals = aLine.partition(":")
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sKey = cKey.strip()
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if sKey == "@":
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return False, theBits, thePos
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theBits.append(sKey)
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thePos.append(cPos)
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cPos += len(sKey) + 1
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if cVals == "":
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# No values, so we're done
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return True, theBits, thePos
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aVals = cVals.split(",")
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for cVal in aVals:
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sVal = cVal.strip()
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rLen = len(cVal.lstrip())
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tLen = len(cVal)
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theBits.append(sVal)
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thePos.append(cPos+tLen-rLen)
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cPos += tLen + 1
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return True, theBits, thePos
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def checkThese(self, theBits, tItem):
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"""Check the tags against the index to see if they are valid
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tags. This is needed for syntax highlighting.
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"""
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nBits = len(theBits)
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isGood = [False]*nBits
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if nBits == 0:
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return []
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# Check that the key is valid
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isGood[0] = theBits[0] in self.VALID_KEYS
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if not isGood[0] or nBits == 1:
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return isGood
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# If we have a tag, only the first value is accepted, the rest
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# is ignored
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if theBits[0] == nwKeyWords.TAG_KEY and nBits > 1:
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isGood[0] = True
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if theBits[1] in self.tagIndex.keys():
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if self.tagIndex[theBits[1]][1] == tItem.itemHandle:
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isGood[1] = True
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else:
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isGood[1] = False
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else:
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isGood[1] = True
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return isGood
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# If we're still here, we better check that the references exist
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for n in range(1,nBits):
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if theBits[n] in self.tagIndex:
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isGood[n] = self.TAG_CLASS[theBits[0]][0].name == self.tagIndex[theBits[n]][2]
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return isGood
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##
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# Extract Data
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##
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def buildNovelList(self):
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"""Build a list of the content of the novel.
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"""
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self.novelList = []
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self.novelOrder = []
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for tHandle in self.theProject.treeOrder:
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if tHandle not in self.novelIndex:
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continue
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for tEntry in self.novelIndex[tHandle]:
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self.novelList.append(tEntry)
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self.novelOrder.append("%s:%d" % (tHandle,tEntry[0]))
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return True
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def buildReferenceList(self, tHandle):
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"""Build a list of files referring back to our file, specified
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by tHandle.
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"""
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theRefs = {}
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tItem = self.theProject.getItem(tHandle)
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if tHandle is None:
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return theRefs
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theTag = None
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for tTag in self.tagIndex:
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if tHandle == self.tagIndex[tTag][1]:
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theTag = tTag
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break
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if theTag is not None:
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for tHandle in self.refIndex:
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for nLine, tKey, tTag, nTitle in self.refIndex[tHandle]:
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if tTag == theTag:
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theRefs[tHandle] = nLine
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return theRefs
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def getTagSource(self, theTag):
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"""Return the source location of a given tag.
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"""
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if theTag in self.tagIndex:
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theRef = self.tagIndex[theTag]
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if len(theRef) == 3:
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return theRef[1], theRef[0]
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return None, 0
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def buildTagNovelMap(self, theTags, theFilters=None):
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"""Build a two-dimensional map of all titles of the novel and
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which tags they link to from the various meta tags. This map is
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used to display the timeline view.
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"""
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tagMap = {}
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tagClass = {}
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exClass = []
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if theFilters is not None:
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if "exClass" in theFilters.keys():
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exClass = theFilters["exClass"]
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for theTag in theTags:
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try:
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tagClass[theTag] = nwItemClass[self.tagIndex[theTag][2]]
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except:
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logger.error("Could not map '%s' to nwItemClass" % self.tagIndex[theTag][2])
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tagClass[theTag] = None
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if tagClass[theTag] not in exClass:
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tagMap[theTag] = [0]*len(self.novelOrder)
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for tHandle in self.refIndex:
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for nLine, tKey, tTag, nTitle in self.refIndex[tHandle]:
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if tTag in tagMap.keys() and tKey in self.TAG_CLASS:
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try:
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nPos = self.novelOrder.index("%s:%d" % (tHandle, nTitle))
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if self.TAG_CLASS[tKey][0] == tagClass[tTag]:
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tagMap[tTag][nPos] = self.TAG_CLASS[tKey][1]
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except:
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logger.error("Could not find '%s:%d' in novelOrder" % (tHandle, nTitle))
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if theFilters["hUnused"]:
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tagMapFiltered = {}
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for theTag in tagMap.keys():
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if sum(tagMap[theTag]) > 0:
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tagMapFiltered[theTag] = tagMap[theTag]
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return tagMapFiltered
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return tagMap
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# END Class NWIndex
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