diff options
Diffstat (limited to 'runtime/doc/eval.txt')
| -rw-r--r-- | runtime/doc/eval.txt | 51 |
1 files changed, 31 insertions, 20 deletions
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt index 61d540a3dd..8dd79d45a4 100644 --- a/runtime/doc/eval.txt +++ b/runtime/doc/eval.txt @@ -840,8 +840,8 @@ Example: > All expressions within one level are parsed from left to right. +------------------------------------------------------------------------------ expr1 *expr1* *ternary* *E109* ------ expr2 ? expr1 : expr1 @@ -867,8 +867,8 @@ You should always put a space before the ':', otherwise it can be mistaken for use in a variable such as "a:1". +------------------------------------------------------------------------------ expr2 and expr3 *expr2* *expr3* ---------------- expr3 || expr3 .. logical OR *expr-barbar* expr4 && expr4 .. logical AND *expr-&&* @@ -906,8 +906,8 @@ This is valid whether "b" has been defined or not. The second clause will only be evaluated if "b" has been defined. +------------------------------------------------------------------------------ expr4 *expr4* ------ expr5 {cmp} expr5 @@ -1010,8 +1010,9 @@ can be matched like an ordinary character. Examples: "foo\nbar" =~ "\\n" evaluates to 0 +------------------------------------------------------------------------------ expr5 and expr6 *expr5* *expr6* ---------------- + expr6 + expr6 Number addition, |List| or |Blob| concatenation *expr-+* expr6 - expr6 Number subtraction *expr--* expr6 . expr6 String concatenation *expr-.* @@ -1064,8 +1065,9 @@ None of these work for |Funcref|s. . and % do not work for Float. *E804* +------------------------------------------------------------------------------ expr7 *expr7* ------ + ! expr7 logical NOT *expr-!* - expr7 unary minus *expr-unary--* + expr7 unary plus *expr-unary-+* @@ -1082,8 +1084,9 @@ These three can be repeated and mixed. Examples: --9 == 9 +------------------------------------------------------------------------------ expr8 *expr8* ------ + This expression is either |expr9| or a sequence of the alternatives below, in any order. E.g., these are all possible: expr8[expr1].name @@ -1234,8 +1237,9 @@ When using the lambda form there must be no white space between the } and the *expr9* +------------------------------------------------------------------------------ number ------- + number number constant *expr-number* *0x* *hex-number* *0o* *octal-number* *binary-number* @@ -1297,9 +1301,9 @@ function. Example: > < 7.853981633974483e-01 - +------------------------------------------------------------------------------ string *string* *String* *expr-string* *E114* ------- + "string" string constant *expr-quote* Note that double quotes are used. @@ -1338,16 +1342,17 @@ encodings. Use "\u00ff" to store character 255 correctly as UTF-8. Note that "\000" and "\x00" force the end of the string. +------------------------------------------------------------------------------ blob-literal *blob-literal* *E973* ------------- Hexadecimal starting with 0z or 0Z, with an arbitrary number of bytes. The sequence must be an even number of hex characters. Example: > :let b = 0zFF00ED015DAF +------------------------------------------------------------------------------ literal-string *literal-string* *E115* ---------------- + 'string' string constant *expr-'* Note that single quotes are used. @@ -1361,8 +1366,9 @@ to be doubled. These two commands are equivalent: > if a =~ '\s*' +------------------------------------------------------------------------------ option *expr-option* *E112* *E113* ------- + &option option value, local value if possible &g:option global option value &l:option local option value @@ -1376,8 +1382,9 @@ and there is no buffer-local or window-local value, the global value is used anyway. +------------------------------------------------------------------------------ register *expr-register* *@r* --------- + @r contents of register 'r' The result is the contents of the named register, as a single string. @@ -1394,8 +1401,9 @@ nesting *expr-nesting* *E110* (expr1) nested expression +------------------------------------------------------------------------------ environment variable *expr-env* --------------------- + $VAR environment variable The String value of any environment variable. When it is not defined, the @@ -1420,20 +1428,23 @@ The first one probably doesn't echo anything, the second echoes the $shell variable (if your shell supports it). +------------------------------------------------------------------------------ internal variable *expr-variable* ------------------ + variable internal variable See below |internal-variables|. +------------------------------------------------------------------------------ function call *expr-function* *E116* *E118* *E119* *E120* -------------- + function(expr1, ...) function call See below |functions|. +------------------------------------------------------------------------------ lambda expression *expr-lambda* *lambda* ------------------ + {args -> expr1} lambda expression A lambda expression creates a new unnamed function which returns the result of @@ -1524,7 +1535,7 @@ specified by what is prepended: |tabpage-variable| t: Local to the current tab page. |global-variable| g: Global. |local-variable| l: Local to a function. -|script-variable| s: Local to a |:source|'ed Vim script. +|script-variable| s: Local to a |:source|d Vim script. |function-argument| a: Function argument (only inside a function). |vim-variable| v: Global, predefined by Vim. @@ -1922,10 +1933,10 @@ v:fname_in The name of the input file. Valid while evaluating: v:fname_out The name of the output file. Only valid while evaluating: option used for ~ - 'charconvert' resulting converted file (*) + 'charconvert' resulting converted file [1] 'diffexpr' output of diff 'patchexpr' resulting patched file - (*) When doing conversion for a write command (e.g., ":w + [1] When doing conversion for a write command (e.g., ":w file") it will be equal to v:fname_in. When doing conversion for a read command (e.g., ":e file") it will be a temporary file and different from v:fname_in. |