Updated script that can be controled by Nodejs web app

lib/python3.13/site-packages/openpyxl/cell/rich_text.py

@@ -0,0 +1,202 @@
+# Copyright (c) 2010-2024 openpyxl
+
+"""
+RichText definition
+"""
+from copy import copy
+from openpyxl.compat import NUMERIC_TYPES
+from openpyxl.cell.text import InlineFont, Text
+from openpyxl.descriptors import (
+    Strict,
+    String,
+    Typed
+)
+
+from openpyxl.xml.functions import Element, whitespace
+
+class TextBlock(Strict):
+    """ Represents text string in a specific format
+
+    This class is used as part of constructing a rich text strings.
+    """
+    font = Typed(expected_type=InlineFont)
+    text = String()
+
+    def __init__(self, font, text):
+        self.font = font
+        self.text = text
+
+
+    def __eq__(self, other):
+        return self.text == other.text and self.font == other.font
+
+
+    def __str__(self):
+        """Just retun the text"""
+        return self.text
+
+
+    def __repr__(self):
+        font = self.font != InlineFont() and self.font or "default"
+        return f"{self.__class__.__name__} text={self.text}, font={font}"
+
+
+    def to_tree(self):
+        el = Element("r")
+        el.append(self.font.to_tree(tagname="rPr"))
+        t = Element("t")
+        t.text = self.text
+        whitespace(t)
+        el.append(t)
+        return el
+
+#
+# Rich Text class.
+# This class behaves just like a list whose members are either simple strings, or TextBlock() instances.
+# In addition, it can be initialized in several ways:
+# t = CellRFichText([...]) # initialize with a list.
+# t = CellRFichText((...)) # initialize with a tuple.
+# t = CellRichText(node) # where node is an Element() from either lxml or xml.etree (has a 'tag' element)
+class CellRichText(list):
+    """Represents a rich text string.
+
+    Initialize with a list made of pure strings or :class:`TextBlock` elements
+    Can index object to access or modify individual rich text elements
+    it also supports the + and += operators between rich text strings
+    There are no user methods for this class
+
+    operations which modify the string will generally call an optimization pass afterwards,
+    that merges text blocks with identical formats, consecutive pure text strings,
+    and remove empty strings and empty text blocks
+    """
+
+    def __init__(self, *args):
+        if len(args) == 1:
+            args = args[0]
+            if isinstance(args, (list, tuple)):
+                CellRichText._check_rich_text(args)
+            else:
+                CellRichText._check_element(args)
+                args = [args]
+        else:
+            CellRichText._check_rich_text(args)
+        super().__init__(args)
+
+
+    @classmethod
+    def _check_element(cls, value):
+        if not isinstance(value, (str, TextBlock, NUMERIC_TYPES)):
+            raise TypeError(f"Illegal CellRichText element {value}")
+
+
+    @classmethod
+    def _check_rich_text(cls, rich_text):
+        for t in rich_text:
+            CellRichText._check_element(t)
+
+    @classmethod
+    def from_tree(cls, node):
+        text = Text.from_tree(node)
+        if text.t:
+            return (text.t.replace('x005F_', ''),)
+        s = []
+        for r in text.r:
+            t = ""
+            if r.t:
+                t = r.t.replace('x005F_', '')
+            if r.rPr:
+                s.append(TextBlock(r.rPr, t))
+            else:
+                s.append(t)
+        return cls(s)
+
+    # Merge TextBlocks with identical formatting
+    # remove empty elements
+    def _opt(self):
+        last_t = None
+        l = CellRichText(tuple())
+        for t in self:
+            if isinstance(t, str):
+                if not t:
+                    continue
+            elif not t.text:
+                continue
+            if type(last_t) == type(t):
+                if isinstance(t, str):
+                    last_t += t
+                    continue
+                elif last_t.font == t.font:
+                    last_t.text += t.text
+                    continue
+            if last_t:
+                l.append(last_t)
+            last_t = t
+        if last_t:
+            # Add remaining TextBlock at end of rich text
+            l.append(last_t)
+        super().__setitem__(slice(None), l)
+        return self
+
+
+    def __iadd__(self, arg):
+        # copy used here to create new TextBlock() so we don't modify the right hand side in _opt()
+        CellRichText._check_rich_text(arg)
+        super().__iadd__([copy(e) for e in list(arg)])
+        return self._opt()
+
+
+    def __add__(self, arg):
+        return CellRichText([copy(e) for e in list(self) + list(arg)])._opt()
+
+
+    def __setitem__(self, indx, val):
+        CellRichText._check_element(val)
+        super().__setitem__(indx, val)
+        self._opt()
+
+
+    def append(self, arg):
+        CellRichText._check_element(arg)
+        super().append(arg)
+
+
+    def extend(self, arg):
+        CellRichText._check_rich_text(arg)
+        super().extend(arg)
+
+
+    def __repr__(self):
+        return "CellRichText([{}])".format(', '.join((repr(s) for s in self)))
+
+
+    def __str__(self):
+        return ''.join([str(s) for s in self])
+
+
+    def as_list(self):
+        """
+        Returns a list of the strings contained.
+        The main reason for this is to make editing easier.
+        """
+        return [str(s) for s in self]
+
+
+    def to_tree(self):
+        """
+        Return the full XML representation
+        """
+        container = Element("is")
+        for obj in self:
+            if isinstance(obj, TextBlock):
+                container.append(obj.to_tree())
+
+            else:
+                el = Element("r")
+                t = Element("t")
+                t.text = obj
+                whitespace(t)
+                el.append(t)
+                container.append(el)
+
+        return container
+