PSeInt profile CEVaP

These are the rules of the CEVaP profile, explained simply, with an example that follows them and opens in Codoritmo with one click.

Open in Codoritmo with this profile

Opens this page's example with the CEVaP profile already switched on.

How its author describes it

The profile's original text, in Spanish, as distributed with PSeInt.

Institución
Centro Escolar Valle de Perote
Cátedra
Informática
Maestro
Luis Rodrigo Rios Flores

In short

What changes compared with Codoritmo's default profile:

Every variable must be declared with Definir
No accents or ñ in variable names
Every statement must end with a semicolon
You can assign with = as well as <-
No conditions like Es Par: comparisons use operators
Arrays start at 0

All of its rules

Marked rules differ from Codoritmo's default profile; everything else behaves the same.

Variables

How they are declared and when they can be used.

Declare variables with DefinirDiffers from default: Required. Before using a variable you must declare it with its type, for example Definir edad Como Entero. That includes the counter of every Para.
Give a value before use: Not checked. It's still good practice to give every variable a value before using it.
Protected Para counter: You can change the counter inside the Para and keep using it after the loop ends.
Accents and ñ in namesDiffers from default: Not allowed in variable or subroutine names: write anio or posicion. Accented keywords such as Según still work.

Writing style

Punctuation, closing words and how values are assigned.

Semicolon at the endDiffers from default: Required. Every statement ends in ;, as in Escribir "Hola";. Lines that open or close a structure (Si, FinSi, FinPara) don't take one.
Relaxed syntax: Accepts handy variants: Fin Si as two words, optional Entonces and Hacer, Mientras Que and Desde in loops, and values in Escribir separated by spaces.
Assign with =Differs from default: Allowed: besides x <- 5 you can write x = 5. Inside a condition, = is still a comparison.

Operators and conditions

How comparisons are written and text is put together.

Word operators: You can write Y, O, NO and MOD (and, or, not, remainder) as well as their symbols &, |, ~ and %.
Plain-language conditionsDiffers from default: Doesn't accept them: write the comparison with operators, such as x MOD 2 = 0 or x > 5.
Join text with +: Allowed: "Hola, " + nombre makes a single piece of text.

Arrays

Where indexes start and how the size is set.

First array indexDiffers from default: Arrays start at 0: after Dimension notas[3] the slots are notas[0], notas[1] and notas[2].
Array size from a variable: Allowed: you can read n and then write Dimension datos[n].
Resize arrays: You can change the size of an existing array with Redimensionar.

Loops and Segun

Which ways of repeating and choosing between cases it accepts.

Para Cada loop: Available: Para Cada nota de notas Hacer goes through every slot of an array.
Repetir … Mientras Que: A Repetir loop can end with Hasta Que condition (until) or Mientras Que condition (while).
Para counting down: If the start is greater than the end, Para counts down one by one even without Con Paso -1.
Segun with whole numbers: The value a Segun checks can also be text, with options such as "a".

Subroutines and text functions

Which extra tools you get to organise the program.

Your own subroutines and functions: You can write your own SubProceso or Funcion to split the program into parts.
Text functions: Available: Longitud, Subcadena, Mayusculas, Minusculas and Concatenar (length, substring, upper case, lower case, join).

An example that follows these rules

It works out the average of three marks. It's written for this profile, and the comments point out what changes compared with the default. We checked it with Codoritmo's interpreter using these same rules.

PerfilCEVaP.psc · 34 lines

1// Example written with the rules of the CEVaP profile2// Every statement ends with a semicolon3Algoritmo PerfilCEVaP4    // This profile requires every variable to be declared with Definir5    // Variable names have no accents or ñ6    Definir notas, suma, i Como Entero;7    Definir promedio Como Real;8    Definir nombre Como Caracter;9    Dimension notas[3];10    // Arrays start at 0: the slots are 0, 1 and 211    notas[0] <- 8;12    notas[1] <- 9;13    notas[2] <- 7;14    // This profile also lets you assign with =15    suma = 0;16    Para i <- 0 Hasta 2 Hacer17        suma <- suma + notas[i];18    FinPara19    promedio <- suma / 3;20    nombre <- "Ana";21    Escribir "Hi, ", nombre;22    Escribir "Average: ", promedio;23    Si promedio >= 7 Y promedio <= 10 Entonces24        Escribir "Passed";25    SiNo26        Escribir "Failed";27    FinSi28    // Es Par isn't accepted: the condition uses operators29    Si suma MOD 2 = 0 Entonces30        Escribir "The sum is even: ", suma;31    SiNo32        Escribir "The sum is odd: ", suma;33    FinSi34FinAlgoritmo

What it prints

This is the example's real output, run with the CEVaP profile.

Hi, Ana
Average: 8
Passed
The sum is even: 24

Open in Codoritmo with this profile

Similar profiles

These profiles differ from this one in a single rule.

ColRosarioBogota
There: Every variable needs a value before it is used
RamonCastilla
There: Accents and ñ are allowed in names

Examples that touch these rules

They open with the default profile; switch to yours from the editor's bottom bar.

Grade Average
Stores five grades in an array and finds the average and the highest.
Beginner
Factorial and Power
Functions that compute a factorial and a power.
Intermediate
Count Vowels
Counts the vowels, spaces and other characters in a text.
Intermediate