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[Bug] Zrender Overflow Word Wrapping can Break Apart Characters and can Break Before Spaces #18583

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ecomfe/zrender
#1006
@Wetterquarz

Description

Version

5.0.0 - 5.4.2
5.4.3-dev.20230502
5.5.0-dev.20230501

Link to Minimal Reproduction

https://echarts.apache.org/examples/en/editor.html?c=line-marker&code=PYBwLglsB2AEC8sDeAoWtJgDYFMBcya6GOAHmAQOQAqOAtiDgE4CGYArkzrAMIAWLaAHNuEOGD7cewOmKGwA6jhwBrADSxBAE02wsMeWDJgMkriwBmRphmCwLwJgGNuAd1YgQc27AGeccK4QEpqAPBuAhjsRUZEx0ZRqROhG5ADKYACeuASoxMTAAG7MFvquVABG5irxicRBWhIEACwADABMNQC-RB0JHQDcQA

Steps to Reproduce

  1. Create a chart with any text and set it up to wrap set text when overflowing.
  2. Use characters of the so-called non-BMP.
  3. Try some widths until you break within the character or before a space (or both as in the minimal reproduction)

Current Behavior

image
The 3rd line starts with a space.
The 3rd line doesn't calculate the character widths correctly and is short.
One of the Domino Tiles has been broken into two illegal characters.

Expected Behavior

According to the Unicode Standard (https://www.unicode.org/reports/tr14/#SP) the wrapping should occur after all space-characters when a line-break is desired by the algorithm. Characters should also, obviously, not be broken in two and their width should be correctly determined.

Environment

- OS: Windows 10
- Browser: Edge 112.0.1722.58 (Chromium)

Any additional comments?

No response

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    bugdifficulty: easyIssues that can be fixed more easily than the average.enThis issue is in English

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