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Fix #4777 and #7887...
Fix #4777 and #7887 The function in charge of actually converting cursor offset to CodeMirror line number and character number was actually crashing when the cursor was at the last character (loop until undefined, then access length of variable, which is undefined). This was hiding a bug in which when you would completer to a single completion pressing tab after as-you-type filtering, the completion would be completed twice. The logic that was supposed to detect whether or not all completions had a common prefix was actually faulty as the common prefix used to be a string but was then changed to an object. Hence the logic to check whether or not there was actually a common prefix was always true, even for empty string, leading to the deletion of the line (replace by '') in some cases.
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nbformat.v3.schema.json
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{
"$schema": "http://json-schema.org/draft-04/schema#",
"description": "IPython Notebook v3.0 JSON schema.",
"type": "object",
"additionalProperties": false,
"required": ["metadata", "nbformat_minor", "nbformat", "worksheets"],
"properties": {
"metadata": {
"description": "Notebook root-level metadata.",
"type": "object",
"additionalProperties": true,
"properties": {
"kernel_info": {
"description": "Kernel information.",
"type": "object",
"required": ["name", "language"],
"properties": {
"name": {
"description": "Name of the kernel specification.",
"type": "string"
},
"language": {
"description": "The programming language which this kernel runs.",
"type": "string"
},
"codemirror_mode": {
"description": "The codemirror mode to use for code in this language.",
"type": "string"
}
}
},
"signature": {
"description": "Hash of the notebook.",
"type": "string"
}
}
},
"nbformat_minor": {
"description": "Notebook format (minor number). Incremented for backward compatible changes to the notebook format.",
"type": "integer",
"minimum": 0
},
"nbformat": {
"description": "Notebook format (major number). Incremented between backwards incompatible changes to the notebook format.",
"type": "integer",
"minimum": 3,
"maximum": 3
},
"orig_nbformat": {
"description": "Original notebook format (major number) before converting the notebook between versions.",
"type": "integer",
"minimum": 1
},
"orig_nbformat_minor": {
"description": "Original notebook format (minor number) before converting the notebook between versions.",
"type": "integer",
"minimum": 0
},
"worksheets" : {
"description": "Array of worksheets",
"type": "array",
"items": {"$ref": "#/definitions/worksheet"}
}
},
"definitions": {
"worksheet": {
"additionalProperties": false,
"required" : ["cells"],
"properties":{
"cells": {
"description": "Array of cells of the current notebook.",
"type": "array",
"items": {
"type": "object",
"oneOf": [
{"$ref": "#/definitions/raw_cell"},
{"$ref": "#/definitions/markdown_cell"},
{"$ref": "#/definitions/heading_cell"},
{"$ref": "#/definitions/code_cell"}
]
}
},
"metadata": {
"type": "object",
"description": "metadata of the current worksheet"
}
}
},
"raw_cell": {
"description": "Notebook raw nbconvert cell.",
"type": "object",
"additionalProperties": false,
"required": ["cell_type", "source"],
"properties": {
"cell_type": {
"description": "String identifying the type of cell.",
"enum": ["raw"]
},
"metadata": {
"description": "Cell-level metadata.",
"type": "object",
"additionalProperties": true,
"properties": {
"format": {
"description": "Raw cell metadata format for nbconvert.",
"type": "string"
},
"name": {"$ref": "#/definitions/misc/metadata_name"},
"tags": {"$ref": "#/definitions/misc/metadata_tags"}
}
},
"source": {"$ref": "#/definitions/misc/source"}
}
},
"markdown_cell": {
"description": "Notebook markdown cell.",
"type": "object",
"additionalProperties": false,
"required": ["cell_type", "source"],
"properties": {
"cell_type": {
"description": "String identifying the type of cell.",
"enum": ["markdown", "html"]
},
"metadata": {
"description": "Cell-level metadata.",
"type": "object",
"properties": {
"name": {"$ref": "#/definitions/misc/metadata_name"},
"tags": {"$ref": "#/definitions/misc/metadata_tags"}
},
"additionalProperties": true
},
"source": {"$ref": "#/definitions/misc/source"}
}
},
"heading_cell": {
"description": "Notebook heading cell.",
"type": "object",
"additionalProperties": false,
"required": ["cell_type", "source", "level"],
"properties": {
"cell_type": {
"description": "String identifying the type of cell.",
"enum": ["heading"]
},
"metadata": {
"description": "Cell-level metadata.",
"type": "object",
"additionalProperties": true
},
"source": {"$ref": "#/definitions/misc/source"},
"level": {
"description": "Level of heading cells.",
"type": "integer",
"minimum": 1
}
}
},
"code_cell": {
"description": "Notebook code cell.",
"type": "object",
"additionalProperties": false,
"required": ["cell_type", "input", "outputs", "language"],
"properties": {
"cell_type": {
"description": "String identifying the type of cell.",
"enum": ["code"]
},
"language": {
"description": "The cell's language (always Python)",
"type": "string"
},
"collapsed": {
"description": "Whether the cell is collapsed/expanded.",
"type": "boolean"
},
"metadata": {
"description": "Cell-level metadata.",
"type": "object",
"additionalProperties": true
},
"input": {"$ref": "#/definitions/misc/source"},
"outputs": {
"description": "Execution, display, or stream outputs.",
"type": "array",
"items": {"$ref": "#/definitions/output"}
},
"prompt_number": {
"description": "The code cell's prompt number. Will be null if the cell has not been run.",
"type": ["integer", "null"],
"minimum": 0
}
}
},
"output": {
"type": "object",
"oneOf": [
{"$ref": "#/definitions/pyout"},
{"$ref": "#/definitions/display_data"},
{"$ref": "#/definitions/stream"},
{"$ref": "#/definitions/pyerr"}
]
},
"pyout": {
"description": "Result of executing a code cell.",
"type": "object",
"additionalProperties": false,
"required": ["output_type", "prompt_number"],
"properties": {
"output_type": {
"description": "Type of cell output.",
"enum": ["pyout"]
},
"prompt_number": {
"description": "A result's prompt number.",
"type": ["integer"],
"minimum": 0
},
"text": {"$ref": "#/definitions/misc/multiline_string"},
"latex": {"$ref": "#/definitions/misc/multiline_string"},
"png": {"$ref": "#/definitions/misc/multiline_string"},
"jpeg": {"$ref": "#/definitions/misc/multiline_string"},
"svg": {"$ref": "#/definitions/misc/multiline_string"},
"html": {"$ref": "#/definitions/misc/multiline_string"},
"javascript": {"$ref": "#/definitions/misc/multiline_string"},
"json": {"$ref": "#/definitions/misc/multiline_string"},
"pdf": {"$ref": "#/definitions/misc/multiline_string"},
"metadata": {"$ref": "#/definitions/misc/output_metadata"}
},
"patternProperties": {
"^[a-zA-Z0-9]+/[a-zA-Z0-9\\-\\+\\.]+$": {
"description": "mimetype output (e.g. text/plain), represented as either an array of strings or a string.",
"$ref": "#/definitions/misc/multiline_string"
}
}
},
"display_data": {
"description": "Data displayed as a result of code cell execution.",
"type": "object",
"additionalProperties": false,
"required": ["output_type"],
"properties": {
"output_type": {
"description": "Type of cell output.",
"enum": ["display_data"]
},
"text": {"$ref": "#/definitions/misc/multiline_string"},
"latex": {"$ref": "#/definitions/misc/multiline_string"},
"png": {"$ref": "#/definitions/misc/multiline_string"},
"jpeg": {"$ref": "#/definitions/misc/multiline_string"},
"svg": {"$ref": "#/definitions/misc/multiline_string"},
"html": {"$ref": "#/definitions/misc/multiline_string"},
"javascript": {"$ref": "#/definitions/misc/multiline_string"},
"json": {"$ref": "#/definitions/misc/multiline_string"},
"pdf": {"$ref": "#/definitions/misc/multiline_string"},
"metadata": {"$ref": "#/definitions/misc/output_metadata"}
},
"patternProperties": {
"[a-zA-Z0-9]+/[a-zA-Z0-9\\-\\+\\.]+$": {
"description": "mimetype output (e.g. text/plain), represented as either an array of strings or a string.",
"$ref": "#/definitions/misc/multiline_string"
}
}
},
"stream": {
"description": "Stream output from a code cell.",
"type": "object",
"additionalProperties": false,
"required": ["output_type", "stream", "text"],
"properties": {
"output_type": {
"description": "Type of cell output.",
"enum": ["stream"]
},
"stream": {
"description": "The stream type/destination.",
"type": "string"
},
"text": {
"description": "The stream's text output, represented as an array of strings.",
"$ref": "#/definitions/misc/multiline_string"
}
}
},
"pyerr": {
"description": "Output of an error that occurred during code cell execution.",
"type": "object",
"additionalProperties": false,
"required": ["output_type", "ename", "evalue", "traceback"],
"properties": {
"output_type": {
"description": "Type of cell output.",
"enum": ["pyerr"]
},
"ename": {
"description": "The name of the error.",
"type": "string"
},
"evalue": {
"description": "The value, or message, of the error.",
"type": "string"
},
"traceback": {
"description": "The error's traceback, represented as an array of strings.",
"type": "array",
"items": {"type": "string"}
}
}
},
"misc": {
"metadata_name": {
"description": "The cell's name. If present, must be a non-empty string.",
"type": "string",
"pattern": "^.+$"
},
"metadata_tags": {
"description": "The cell's tags. Tags must be unique, and must not contain commas.",
"type": "array",
"uniqueItems": true,
"items": {
"type": "string",
"pattern": "^[^,]+$"
}
},
"source": {
"description": "Contents of the cell, represented as an array of lines.",
"$ref": "#/definitions/misc/multiline_string"
},
"prompt_number": {
"description": "The code cell's prompt number. Will be null if the cell has not been run.",
"type": ["integer", "null"],
"minimum": 0
},
"mimetype": {
"patternProperties": {
"^[a-zA-Z0-9\\-\\+]+/[a-zA-Z0-9\\-\\+]+": {
"description": "The cell's mimetype output (e.g. text/plain), represented as either an array of strings or a string.",
"$ref": "#/definitions/misc/multiline_string"
}
}
},
"output_metadata": {
"description": "Cell output metadata.",
"type": "object",
"additionalProperties": true
},
"multiline_string": {
"oneOf" : [
{"type": "string"},
{
"type": "array",
"items": {"type": "string"}
}
]
}
}
}
}