Ajuda del LibreOfficeDev 25.2
Aquesta secció conté descripcions de les funcions de text.
To include a text string in a formula, place the text string between two double quotation marks (") and Calc takes the characters in the string without attempting to interpret them. For example, the formula ="Hello world!" displays the text string Hello world! in the cell, with no surrounding double quotation marks.
The more complex formula =CONCATENATE("Life is really simple, "; "but we insist on making it complicated "; "(Confucius).") concatenates three individual strings in double quotation marks, outputting Life is really simple, but we insist on making it complicated (Confucius).
To place a literal double quotation mark within a string inside a formula, two methods can be used:
You can "escape" the double quotation mark with an additional double quotation mark, and Calc treats the escaped double quotation mark as a literal value. For example, the formula ="My name is ""John Doe""." outputs the string My name is "John Doe". Another simple example is the formula =UNICODE("""") which returns 34, the decimal value of the Unicode quotation mark character (U+0022) — here the first and fourth double quotation marks indicate the beginning and end of the string, while the second double quotation mark escapes the third.
You can use the CHAR function or the UNICHAR function to insert a double quotation mark. For example, the formula =UNICHAR(34) & "The Catcher in the Rye" & UNICHAR(34) & " is a famous book by J. D. Salinger." displays the string "The Catcher in the Rye" is a famous book by J. D. Salinger.
Be aware that Calc's AutoCorrect function may modify double quotation marks. AutoCorrect should not change the double quotation marks within formula cells but may change those used in non-formula cells containing text. For example, if you copy a string that is surrounded by some other form of typographical double quotation marks, such as the left double quotation mark (U+201C) and the right double quotation mark (U+201D), and then paste into a formula cell, an error may result. Open the Double Quotes area of the dialog to set the characters used to automatically correct the start and end typographical double quotation marks. Uncheck the toggle button to disable the feature.
Cells with the empty string ("") are not equivalent to blank cells. When searching or calculating with text, the empty string "" is the text with length zero.
For example, when the formula in A1 returns the empty string "", the following applies:
=ISBLANK(A1) returns FALSE. The cell is not blank.
=ISFORMULA(A1) returns TRUE. The cell is a formula.
=ISLOGICAL(A1) returns FALSE. Not a logical value.
=ISNONTEXT(A1) returns FALSE. The cell has the empty string.
=ISNUMBER(A1) returns FALSE. Not a number.
=ISTEXT(A1) returns TRUE. The cell has the empty string, calculated by a formula.
=LEN(A1) returns 0. The length of the empty string is 0.
Retorna el primer caràcter o caràcters d'un text DBCS.
LEFTB("Text" [; Number_bytes])
Text és el text del qual s'han de determinar les paraules parcials inicials.
NombreBytes (opcional) indica el nombre de caràcters que voleu extreure amb ESQUERRAB. Si no es defineix aquest paràmetre, es retorna un únic caràcter.
=LEFTB("中国";1) returns " " (1 byte is only half a DBCS character and a space character is returned instead).
=LEFTB("中国";2) returns "中" (2 bytes constitute one complete DBCS character).
=LEFTB("中国";3) returns "中 " (3 bytes constitute one DBCS character and a half; the last character returned is therefore a space character).
=LEFTB("中国";4) returns "中国" (4 bytes constitute two complete DBCS characters).
=LEFTB("office";3) returns "off" (3 non-DBCS characters each consisting of 1 byte).
For double-byte character set (DBCS) languages, returns the number of bytes used to represent the characters in a text string.
LONGB("Text")
Text és el text la longitud del qual s'ha de determinar.
ESQUERRAB("中国";2) retorna "中" (2 bytes formen un caràcter DBCS complet).
ESQUERRAB("中国";2) retorna 4 (2 bytes formen un caràcter DBCS).
ESQUERRAB("oficina") retorna " 6 (6 caràcters no-DBCS, cadascun format per 1 byte).
=LONGB("Bon dia") retorna 7.
=LONGB(12345,67) retorna 8.
Retorna la cadena de text d'un text DBCS. Els paràmetres indiquen la posició inicial i el nombre de caràcters.
MIGB("Text"; Inici; NombreBytes)
Text és el text que conté els caràcters que s'han d'extreure.
Inici és la posició del primer caràcter del text que s'ha d'extreure.
NombreBytes indica el nombre de caràcters que MIDB retornarà del text, en bytes.
=MIDB("中国";1;0) returns "" (0 bytes is always an empty string).
=MIDB("中国";1;1) returns " " (1 byte is only half a DBCS character and therefore the result is a space character).
=MIDB("中国";1;2) returns "中" (2 bytes constitute one complete DBCS character).
=MIDB("中国";1;3) returns "中 " (3 bytes constitute one and a half DBCS character; the last byte results in a space character).
=MIDB("中国";1;4) returns "中国" (4 bytes constitute two complete DBCS characters).
=MIDB("中国";2;1) returns " " (byte position 2 is not at the beginning of a character in a DBCS string; 1 space character is returned).
=MIDB("中国";2;2) returns " " (byte position 2 points to the last half of the first character in the DBCS string; the 2 bytes asked for therefore constitutes the last half of the first character and the first half of the second character in the string; 2 space characters are therefore returned).
=MIDB("中国";2;3) returns " 国" (byte position 2 is not at the beginning of a character in a DBCS string; a space character is returned for byte position 2).
=MIDB("中国";3;1) returns " " (byte position 3 is at the beginning of a character in a DBCS string, but 1 byte is only half a DBCS character and a space character is therefore returned instead).
=MIDB("中国";3;2) returns "国" (byte position 3 is at the beginning of a character in a DBCS string, and 2 bytes constitute one DBCS character).
=MIDB("office";2;3) returns "ffi" (byte position 2 is at the beginning of a character in a non-DBCS string, and 3 bytes of a non-DBCS string constitute 3 characters).
Retorna la cadena de text d'un text. Els paràmetres indiquen la posició inicial i el nombre de caràcters.
MIG("Text"; Inici; Nombre)
Text és el text que conté els caràcters que s'han d'extreure.
Inici és la posició del primer caràcter del text que s'ha d'extreure.
Nombre indica el nombre de caràcters que conté la part del text.
=MIG("oficina";2;2) retorna fi.
Retorna l'últim caràcter o caràcters d'un text amb jocs de caràcters de byte doble (DBCS).
RIGHTB("Text" [; Number_bytes])
Text és el text del qual es determinarà la part dreta.
Number_bytes (optional) specifies the number of characters you want RIGHTB to extract, based on bytes. If this parameter is not defined, one byte is returned.
DRETAB("中国";1) retorna " " (1 byte només és la meitat d'un caràcter DBCS i, per tant, es retorna un espai).
DRETAB("中国";2) retorna "国" (2 bytes formen un caràcter DBCS complet).
DRETAB("中国";3) retorna "国 " (3 bytes formen un caràcter DBCS i mig i un caràcter DBCS complet; es retorna un espai per la primera meitat).
DRETAB("中国";4) retorna "中国" (4 bytes formen dos caràcters DBCS complets).
DRETAB("Àngel";3) retorna «gel» (3 caràcters no-DBCS, cadascun format per 1 byte).