Veronica K. B. Olsen
291 lines
8.4 KiB
Python
291 lines
8.4 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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Structure:
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We need to scan all files to get the novel layout. This is done by heading depth. Each heading
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is recorded in a sorted list. Each such heading again can have a set of meta tags.
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In the other class root folders, each file can have a tag which the meta tags in the novel files
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point to. These tags should be stored in a dictionary where the tag is the key pointing to a single
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file handle. That way we can do lookups on both keys and values.
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The timeline view then consists of novel header elements in the horizontal header, possibly just
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truncated to a Ch or Sc abbreviation, possibly with a number. This can be extracted from the item
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layout. The vertical header column is then whatever notes we want to compare against, and the links
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from the novel files are dots on the row.
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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.project.document import NWDoc
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from nw.enum import nwItemType, nwItemClass
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from nw.constants import nwFiles
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logger = logging.getLogger(__name__)
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class NWIndex():
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TAG_KEY = "@tag"
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POV_KEY = "@pov"
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CHAR_KEY = "@char"
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PLOT_KEY = "@plot"
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TIME_KEY = "@time"
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WORLD_KEY = "@location"
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OBJECT_KEY = "@object"
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CUSTOM_KEY = "@custom"
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NOTE_KEYS = [TAG_KEY]
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NOVEL_KEYS = [PLOT_KEY, POV_KEY, CHAR_KEY, WORLD_KEY, TIME_KEY, OBJECT_KEY, CUSTOM_KEY]
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TAG_CLASS = {
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POV_KEY : nwItemClass.CHARACTER,
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CHAR_KEY : nwItemClass.CHARACTER,
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PLOT_KEY : nwItemClass.PLOT,
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TIME_KEY : nwItemClass.TIMELINE,
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WORLD_KEY : nwItemClass.WORLD,
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OBJECT_KEY : nwItemClass.OBJECT,
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CUSTOM_KEY : nwItemClass.CUSTOM,
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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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# Indices
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self.tagIndex = {}
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self.noteIndex = {}
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self.novelIndex = {}
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return
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def clearIndex(self):
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self.tagIndex = {}
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self.noteIndex = {}
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self.novelIndex = {}
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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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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") 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 "noteIndex" in theData.keys():
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self.noteIndex = theData["noteIndex"]
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if "novelIndex" in theData.keys():
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self.novelIndex = theData["novelIndex"]
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return True
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return False
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def saveIndex(self):
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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+") as outFile:
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outFile.write(json.dumps({
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"tagIndex" : self.tagIndex,
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"noteIndex" : self.noteIndex,
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"novelIndex" : self.novelIndex,
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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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##
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# Index Building
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##
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def scanText(self, tHandle, theText):
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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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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.noteIndex[tHandle] = []
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isNovel = True
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else:
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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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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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if isNovel:
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self.indexTitle(tHandle, aLine, nLine, itemLayout)
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elif aLine[0] == "@":
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if isNovel:
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self.indexNoteRef(tHandle, aLine, nLine)
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else:
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self.indexTag(tHandle, aLine, nLine, itemClass)
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return True
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def indexTitle(self, tHandle, aLine, nLine, itemLayout):
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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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self.novelIndex[tHandle].append([nLine, hDepth, hText, itemLayout.name])
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return True
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def indexNoteRef(self, tHandle, aLine, nLine):
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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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theKey = theBits[0]
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if theKey in self.NOVEL_KEYS:
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for aVal in theBits[1:]:
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self.noteIndex[tHandle].append([nLine, theKey, aVal])
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return True
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def indexTag(self, tHandle, aLine, nLine, itemClass):
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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] == self.TAG_KEY:
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self.tagIndex[theBits[1]] = [nLine, tHandle, itemClass.name]
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return True
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def scanThis(self, aLine):
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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.lower())
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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.lower())
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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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theBits = [aBit.lower() for aBit in theBits]
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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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# If we have a tag, the first value is always OK, rest is ignored
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if theBits[0] == self.TAG_KEY and nBits > 1:
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isGood[0] = True
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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 the references
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if tItem.itemClass == nwItemClass.NOVEL:
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isGood[0] = theBits[0] in self.NOVEL_KEYS
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else:
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isGood[0] = theBits[0] in self.NOTE_KEYS
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if not isGood[0] or nBits == 1:
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return isGood
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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]].name == self.tagIndex[theBits[n]][2]
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return isGood
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# END Class NWIndex
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