Text Column Extractor
Split each nonempty line at tabs or commas and return a one-based column; quoted CSV/TSV is not parsed.
About this text column extractor
Split each nonempty line at tabs or commas and return a one-based column; quoted CSV/TSV is not parsed Transforms and validates developer data structures locally, preventing confidential payload exposure during data wrangling.
Syntax parsing & data transformation logic
Performs high-throughput text line manipulation, discrete set algebra, and lexical sanitation. Set operations compute Union ($A \cup B$), Intersection ($A \cap B$), Difference ($A \setminus B$), and Symmetric Difference ($A \Delta B$) with $O(N)$ hash-indexed lookups. Line operations provide stable deduplication (preserving initial occurrence sequence), alphanumeric natural sorting (via Unicode Collation Algorithm), prefix/suffix insertion, and delimiter replacement.
Worked conversion & output example
Scenario: Use the local tool with a concrete sample. Split each nonempty line at tabs or commas and return the selected one-based column. Spaces are not delimiters, and columns are not joined.
Sample input:
Second field:
Processing: Extract the one-based second field from comma- or tab-separated nonempty lines; spaces are not delimiters.
Illustrative output:
Syntax constraints & input size limits
The column number must be a finite safe integer; blank defaults to 1 and values below 1 clamp to 1. Invalid text or fractions are rejected. This splits tabs/commas literally, not quoted CSV/TSV; embedded newlines, headers and blank rows are not preserved.
Data conversions and formatting in Text Column Extractor reflect standard structured syntax. Verify parsed outputs against your target runtime before deployment.
Local client execution boundary
Data parsing and transformations in Text Column Extractor execute in the local browser tab without remote data transmission.
Data format specifications & language standards
Data interchange formats and language grammar specifications:
- Standard Browser Web API / Algorithm Implementation (No single external RFC/ISO standard)
Text Column Extractor verification · Audit standards
How to use it
- Paste rows separated by newlines and enter a one-based column number.
- Split each nonempty row on tabs or commas, then take that column; missing cells become empty strings.
- Read selected cells one per line.
Frequently asked questions
How does Text Column Tool split rows?+
It removes empty lines, splits every remaining row on a tab or comma, and selects a one-based column number from the secondary field. Missing cells become empty output lines.
What does the comma-separated example return?+
For name,age then Ada,36 with column 2, the output is age and 36 on separate lines. The input delimiter is not reproduced and headers receive no special interpretation.
What are the column limits?+
A blank second field selects column 1. A supplied column must be a finite safe integer; 0 or negative values clamp to 1, while `2x`, `abc` and fractions are rejected. Quoted CSV fields, multiline records and type conversion are not parsed.
What does this example not show?+
The example uses two simple comma-separated rows. This tool does not parse RFC 4180 quoting, upload files, evaluate formulas, or process spreadsheet tables.