723fa03609
* fix: corrected placement of notes Some "note" fields were preemptive in their placement; I corrected their placement to be in more appropriate locations. * update: added additional note fields Added some additional "note" fields to assist those who are reading through the PHP documentation. * fix: formatting of escape sequence examples The formatting was a bit jumbled, so I cleaned up the formatting of the escape sequence. * update: improved examples I added a new example to demonstrate the use of a "break" statement in a while loop, as well as numbered each example. * update: add clarifying statement I added a note at the end of the description, with the goal of being a bit more explicit in terms of what the "continue" statement does.
39 lines
1.8 KiB
Markdown
39 lines
1.8 KiB
Markdown
---
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title: Python Escape Sequences
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---
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A list of escape sequences can be found <a href='https://docs.python.org/3/reference/lexical_analysis.html#strings' target='_blank' rel='nofollow'>here</a>
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Escape sequences allow for including special characters into strings.
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>>> print('Single quote strings can have \'single\' quotes if they are escaped')
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"Single quote strings can have 'single' quotes if they are escaped"
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>>> print("Double quote strings can have \"double\" quotes if they are escaped")
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'Double quote strings can have "double" quotes if they are escaped'
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>>> print("Multiline strings\ncan be created\nusing escape sequences.")
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Multiline strings
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can be created
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using escape sequences.
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>>> print("Backslashes \\ need to be escaped.")
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Backslashes \ need to be escaped.
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A _raw_ string can be used by prefixing the string with `r` or `R` which allows for backslashes to be included without the need to escape them -
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>>> print(r"Backslashes \ don't need to be escaped in raw strings.")
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Backslashes \ don't need to be escaped in raw strings.
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>>> print(r"An odd number of backslashes at the end of a raw string will cause an error\")
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File "<stdin>", line 1
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print(r"An odd number of backslashes at the end of a raw string will cause an error\")
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^
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SyntaxError: EOL while scanning string literal.
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## Some more examples of escape sequences.
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Escape Sequence <- Intended Character
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- \\\ <- backslash
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- \\' <- single quote / apostrophe
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- \\" <- double quote / quotation mark
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- \\a <- ASCII bell makes ringing the bell alert sounds ( eg. xterm )
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- \\b <- ASCII backspace ( BS ) removes previous character
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- \\n <- newline
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- \\r <- carriage return
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