! # % & * + - / 8 : < = > ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ^ _ ` { | ~
            
- About OmniMark
    
- About OmniMark
- absolute value
    
- abs
- accessing databases with OCI
    
- Database access (OMDB)
    - Database access (OMDB legacy)
- accessing ODBC-compliant databases
    
- Database access (OMDB)
    - Database access (OMDB legacy)
- acos
    
- acos (in Trigonometry (OMTRIG))
    - acos (in Trigonometry (OMTRIG legacy))
- action function
    
- Functions
- activate
    
- activate, deactivate
    - true, false
- active
    
- active
- add a subdirectory
    
- FS_MakeDirectory
    - vfs.make-directory
    - vfsMakeDir
- addition
    
- + (plus)
    - Arithmetic and comparison operators
- add-to-ymdhms
    
- add-to-ymdhms
- after
    
- Arrays
    - new
    - Shelves
- again
    
- repeat, again, exit
    - repeat over, #item, #last, #first
    - repeat scan
- aided translations
    
- Aided translation types
    - context-translate
    - cross-translate
    - down-translate
    - up-translate
- alias
    
- repeat over, #item, #last, #first
- always
    
- #program-error
    - always
    - catch
    - is catchable
    - is thrown
    - rethrow
    - throw
- ancestor
    
- ancestor
    - ancestor is
    - Markup context
- and
    
- &
    - and
- any
    
- any
    - Character classes
    - content is
    - Pattern matching
- any **
    
- any
    - Pattern matching
    - unanchored
- any ++
    
- any
    - Pattern matching
- any*
    
- any
    - Pattern matching
- any+
    
- any
    - Pattern matching
- any?
    
- any
    - Pattern matching
- any-content-model
    
- content-model
- any-text
    
- any-text
    - Character classes
    - Pattern matching
- any-text **
    
- Pattern matching
- any-text ++
    
- Pattern matching
- Apache
    
- XSLT support (OMXSLT)
- append
    
- append
- arc cosine
    
- acos (in Trigonometry (OMTRIG))
    - acos (in Trigonometry (OMTRIG legacy))
- arc sine
    
- asin (in Trigonometry (OMTRIG))
    - asin (in Trigonometry (OMTRIG legacy))
- arc tangent
    
- atan (in Trigonometry (OMTRIG))
    - atan (in Trigonometry (OMTRIG legacy))
    - atan2 (in Trigonometry (OMTRIG))
    - atan2 (in Trigonometry (OMTRIG legacy))
- arg
    
- macro
    - Macros: debugging
- arguments
    
- Functions: pre-defining
- arguments files
    
- #!
- arithmetic and comparison operators
    
- Arithmetic and comparison operators
- arithmetic, financial
    
- Binary coded decimal numbers (OMBCD)
- arpadate-to-ymdhms
    
- arpadate-to-ymdhms
- arrays
    
- Arrays
    - Arrays: multi-dimensional
    - Shelves
    - Shelves: pre-defining globals and constants
- as
    
- define external function
    - define infix-function
    - function, define function
    - repeat over, #item, #last, #first
    - using attributes
- ASCII
    
- Data type conversion
- asin
    
- asin (in Trigonometry (OMTRIG))
    - asin (in Trigonometry (OMTRIG legacy))
- assert
    
- assert
- assignment
    
- copy, copy-clear
    - put
    - reset
- associative arrays
    
- Arrays
- atan
    
- atan (in Trigonometry (OMTRIG))
    - atan (in Trigonometry (OMTRIG legacy))
- atan2
    
- atan2 (in Trigonometry (OMTRIG))
    - atan2 (in Trigonometry (OMTRIG legacy))
- attached
    
- is attached
    - Streams: attachments
- attribute
    
- attribute
    - attribute is
    - attribute is defaulted
    - attribute is implied
    - attribute is specified
    - key of attribute
    - number of attribute
    - number of data-attribute
    - using attributes
- attribute tests on items of the "attributes" shelf
    
- Attribute tests on items of the "attributes" shelf
- attribute-declaration
    
- attribute-declaration
- attribute-default-declaration
    
- attribute-default-declaration
- attributes
    
- Attribute aliases
    - Attribute tests on items of the "attributes" shelf
    - Attributes
    - Attributes: list-valued
    - Attributes: order of indexing
    - Attributes: type tests
    - attributes
    - Entity attributes
    - item of attributes
    - key of attributes
    - number of attributes
    - repeat over attributes
    - using attributes
    - vfs.describe
    - vfs.describe-file
    - vfsDescribe
    - vfsDescribeFile
- attributes: order of indexing
    
- Attributes: order of indexing
- attribute-value-declaration
    
- attribute-value-declaration
- authentication, SMTP
    
- MailOutBoxCreate
- avoiding infinite loops in pattern matching
    
- Patterns: positional