StringDelete

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`StringDelete`

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StringDelete["string",patt]

yields the string obtained by deleting from string all occurrences of anything matching the string pattern patt.

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StringDelete[patt]

represents an operator form of StringDelete that can be applied to an expression.

Details and Options

The string expression patt can contain any of the objects specified in the notes for StringExpression.
Setting the option IgnoreCase->True makes StringDelete treat lowercase and uppercase letters as equivalent.
StringDelete[patt][expr] is equivalent to StringDelete[expr,patt].
StringDelete[BioSequence["type","seq"],patt] removes cases of patt in the string "seq" yielding a biomolecular sequence. In this case, degenerate letters in patt are interpreted as wildcard patterns based on the type of biomolecular sequence. Use Verbatim["patt"] to match degenerate letters literally.
The documentation for BioSequence lists the degenerate letters supported by each type of biomolecular sequence.
If the biomolecular sequence operated upon by StringDelete is circular, wraparound matches are possible.

Examples

open allclose all

Basic Examples (4)Summary of the most common use cases

Remove whitespace from a string:

In[1]:=1

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https://wolfram.com/xid/0cg3cyuwi-czr4s4

Out[1]=1

Remove a specific character sequence:

In[1]:=1

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https://wolfram.com/xid/0cg3cyuwi-ert3tl

Out[1]=1

Delete substrings matching a string pattern:

In[1]:=1

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https://wolfram.com/xid/0cg3cyuwi-x5ekd9

Out[1]=1

Use the operator form of StringDelete:

In[1]:=1

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https://wolfram.com/xid/0cg3cyuwi-il6614

Out[1]=1

Scope (4)Survey of the scope of standard use cases

Remove corresponding substrings from a biomolecular sequence:

In[1]:=1

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https://wolfram.com/xid/0cg3cyuwi-7xc191

Out[1]=1

Delete codon-length subsequences in a DNA sequence:

In[1]:=1

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https://wolfram.com/xid/0cg3cyuwi-2kv8or

Out[1]=1

StringDelete respects the degenerate letters and circularity of the provided BioSequence:

In[1]:=1

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https://wolfram.com/xid/0cg3cyuwi-k6qccb

Out[1]=1

In[2]:=2

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https://wolfram.com/xid/0cg3cyuwi-vlh06z

Out[2]=2

In[3]:=3

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https://wolfram.com/xid/0cg3cyuwi-7rp9en

Out[3]=3

Use Verbatim to restrict degenerate letter matching to exact matches:

In[1]:=1

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https://wolfram.com/xid/0cg3cyuwi-x7q8qh

Out[1]=1

Options (1)Common values & functionality for each option

IgnoreCase (1)

Delete substrings regardless of case:

In[1]:=1

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https://wolfram.com/xid/0cg3cyuwi-6hxw45

Out[1]=1

In[2]:=2

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https://wolfram.com/xid/0cg3cyuwi-nhdc4w

Out[2]=2

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